When we were on the highway we got it up to 16 - geez. I will never purchase local or American made again. To produce this energy, fuel economy drops. A vacuum leak can occur as a result of a damaged or faulty EVAP canister or the hoses fixed to it. I often take an interstate trip from Athens GA to Charleston SC. However, the engine check light can turn ON as a result of several other problems, so its advisable to properly scan your vehicle for error codes with an OTC Leak Tanner or Use another Smoke machine to get the actual fault responsible for turning the engine check light ON. Jeep Clutch Recall Involves Gladiator and Wrangler SUVs, antifreeze could leak out onto the engine, read stories from drivers who praise our work. 3 Why does my car waste more gas than usual? To help you save at the pump, its important to understand the main causes of poor gas mileage. I have read, in other forums, that the DPFE sensor (Delta Pressure Feedback Sensor) can impact fuel milage. Add all-wheel drive to the 1.6-liter model, and the combined number . I have change spark plugs! A damaged vapor canister can give out a strong gas smell when it is bad. In this case, this happens because the fuel vapors your vehicle usually uses during combustion gets burned up to the environment before getting to the combustion chamber. Back to foreign for much better gas mileage than a Ford gets. Use your cruise - set it to 55 or 60 mph on your way home - reset your fuel economy - see what you might get straight highway home. The 2014 Ford Escape has 6 problems reported for poor mpg. It also signifies that there is a high consumption or leakage of gas in your vehicles system. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. Combined MPG on Electricity: 105. The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. Ford Escape MPG Rating It seamlessly shuts off engine power when idling at a stop light or in rush-hour traffic to help conserve power. If he is not in the garage fixing challenging mechanical problems, he is writing automotive repair guides, buyers guides, and car and tools comparisons. Our speed limit is 70, so if you go under that, then youll get a ticket. Not sure on your trim - could make a huge difference depending on your driving style. Coquitlam, Britsh Columbia, canada. Example: "Bad Brakes", "Toyota Recall", etc. Once again robert was ontime and performed the repair to the highest standard. Worst Issues. So, up front, Im not great with cars. Simply getting oil hot while driving down the highway will darken it. When the accelerator is pushed, the throttle opens up, allowing air to infiltrate the combustion chamber. To maintain this extra energy, the vehicle is going to use more fuel. Modern vehicles are designed with a lot of emission systems. First, and most likely, could be a clogged up fuel pump. RELATED: 5 Symptoms of a Bad Oxygen Sensor. After all, saving money is great, especially when gas prices are rising. The odor might not be due to the belts and a possibility is oil leaking onto the manifold. Keeping up with regular maintenance and replacing air filters and spark plugs when needed will help to make sure that my Ford Escape continues to get good gas mileage. I Bought This In May 2013. My wife and I drove up North to visit family driving on the freeway of 101Hwy and still gas mileage did not improve. Drive more carefully now in my Escape, and Im using loads more gas. link to How to cut off a Catalytic Converter. This May Be the Best Ride On Car for Teens You Wont Believe What Happened Next! The car now has 2,687 miles on it and gets just under 15 mi per gallon. The kn filter was put in after it got bad gas To fix this, all you need to do is change back to premium fuel. I've replaced the ignition coils, the PCV valves since it was misfiring a mile per gallon. The catalytic converter is an essential component of your car's emission system that helps save the environment from harmful emissions. A: If your Ford Escape is experiencing poor gas mileage you should locate the source of the problem and have a professional diagnose and repair the issue. Blowing smoke at me. I got 26 mpg same route back. In some cases, you can clean the injectors, which saves you money over replacement. So, its essential you know the symptoms of a bad evap canister in your system to enable you service your vehicle on-time, and save yourself from high repair costs. It's usually 250 miles and now it's 188 miles to empty and I have not changed anything in my driving habits. Bad gas mileage can be caused by a number of different things. 2007 Ford Escape very poor fuel economy - 2CarPros It tells me my driving is good! Escape & Escape Hybrid - 02 Escape Poor fuel mileage.. Stumped.. - OK.. My 2002 Escape XLT V6 is getting terrible fuel mileage.. Im completly stumped.. Ive got the automatic 2.5L 2018 Escape S. Just the basic model. Gas. Why is My Eco boost Getting Bad Gas Mileage - Fordmasterx I just got a ford escape 2017 and thinking of trading it after 2 months. 10 Reasons for Poor Gas Mileage and How To Fix it - Mechanic Base This shaking occurs when u get over 40mph. Gas mileage I am getting in city with 40% normal and 60% freeway - 16-18. Sudden poor mileage and excessive rpm in Escape Hybrid I dont make lots of money, and when half my check goes to gas, there is a problem. DON'T WASTE YOUR TIME: These cookies will be stored in your browser only with your consent. This can get your vapor canister saturated or clogged. I have a 2014 S with the 2.5L engine in it and I generally get 22-24 in suburban driving when I don't take any long freeway drives. If you step up to the 2.7L V6 EcoBoost engine the fuel rating drops to 19 miles per gallon in the city and 26 on the highway, which is still respectable for a V6 with 335 horsepower and 380 . 2023 CarGurus, Inc., All Rights Reserved. Most of the indicators that the oil needs to be changed (https://www.yourmechanic.com/article/when-should-i-change-my-oil) are not visible to the naked eye. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Defective Fuel Pump: Fuel delivery issues can drastically affect fuel efficiency. DON'T DO IT! If the decline in efficiency is accompanied by the vehicle pulling to one side, the brake system should be inspected immediately. You want to experience everything your vehicle has to offer, which is why you love pushing hard on the accelerator and feeling the power the engine has. Tire issues such as low pressure or incorrect size can also reduce fuel efficiency in a Ford Escape. The cookie is used to store the user consent for the cookies in the category "Analytics". I can't believe Ford is getting away with LYING about the MPG. Also just using AMSOIL POWER FOAM in the INTAKE wile clean up the O@ and the CONVERTER with EASE11 Run POWER FOAM through the PCV vavle and watch the CLOUDS of c**p coemout the tailpie as it remvoes YEARS and YEARS of TAR, WAX, SOOT and hard COKE frmoteh piston riengs and tops! A few months later the Escape was recalled again because antifreeze could leak out onto the engine due to a freeze plug becoming dislodged. Rxmechanic.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon.com. Solving the Problem of Popping Noises When Pressing the Gas Pedal, What Does BMW IX Maintenance Cost? Front vehicle photos 1986-2018 Autodata, Inc. dba Chrome Data. My car guzzles gasoline. This cookie is set by GDPR Cookie Consent plugin. The fuel vapor goes into your engine to get burnt. 2021 Ford Escape FWD PHEV 4 cyl, 2.5 L, Automatic (variable gear ratios) Elec+Gas. This is to know if the valve isnt leaking and closes correctly. There are a couple of things that could cause this to occur. Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. excessive wheel well/shock tower rust in the 2005 Escape. If you cant remember when it was changed last, its time to fix that. Instead, in a somewhat unprecedented move, Ford sent tow trucks to pick up the affected vehicles and handed out rental cars while the owners waited for repairs. My Escape is the 1.4L engine with ecoboost. Let your engine breathe better and increase the fuel economy, all with this simple replacement. However, this is true with any part of the ignition system, including the plug wires and ignition coil. An unbalanced air-fuel ratio during combustion can lead to improper combustion due to a high amount of air in the engine. We use cookies to analyze & improve your experience, & to personalize content and ads. YourMechanic All rights reserved. 2017 Ford Escape poor gas mileage : r/MechanicAdvice In addition, any brake issue can make the vehicle dangerous to drive. If you continue to use this site, you consent to this use of cookies. WTF. In the engine, the vapors are used up with the usual combustion process. For . We can help you calculate and track your fuel economy. Diesel fuel, Popping noise when pressing the gas pedal is a common problem experienced by many car owners. One possible reason your ford escape is getting bad gas mileage is because you could have a clogged fuel filter. It was running really rough, had the codes read. Numerous factors can have an affect on fuel efficiency so it is usually a constantly changing number but a serious and sudden drop in miles per gallon is cause for concern and the vehicle should be inspected. 4 How many miles will a Ford Escape last? This seem excessive. 5. Create an account to follow your favorite communities and start taking part in conversations. Fuel mileage is way off from EPA reported for this vehicle. 2004 escape 3.0 very poor gas mileage. Ask your Ford dealer. The EVAP canister can be called a Vapor canister or a Charcoal canister. If you are going to spend this much money on fuel you might as well get bigger, roomier vehicle to enjoy. By clicking Accept All, you consent to the use of ALL the cookies. Taylor ford does not even want to talk about four wheel drive or any other problems with gas mileage. And leave WAX and ASH s dept its cause it is REFINED from WAX and TAR! Get notified about new defects, investigations, recalls & lawsuits for the. Most winter formulas contain less energy for each gallon. Since I drove it off the lot it's been averaging 18.1 MPG. I am lucky to ever get 25, even at optimal conditions. miles! I get 27.1 MPG on my 2014 SE. Your sweet spot of mpg is 55mph.. driving 80 is well beyond most any cars efficiency. If a spark plug goes bad, fuel in the affected cylinder might not combust properly, leading to poor gas mileage. Gas Mileage of 2021 Ford Escape - Fuel Economy A new fuel pump can cost between $130 and $473. Friends said to stay away from the domestic autos and buy an import as there would probably have less problems. Your EVAP canister can hold a high amount of fuel vapor when your vehicle is in good shape and operating at high efficiency. The odor of something "burning" should be investigated and completely resolved first before any other repairs are attempted. does not research or authenticate any of the Answers provided. it will never see the key half the time! Made with in Silicon Valley. MPGe. I have had two Escapes recently a 2014 and a 2017. Not good on gas. A: The benefits of improving gas mileage in a Ford Escape include reduced carbon emissions, increased fuel economy and lower maintenance costs. a far cry from the 23 MPG I have changed the plugs, used injector/valve cleaner and no improvement. Flat rate pricing based on labor time and parts, Trusted mechanics, rated by thousands of happy car owners, Hand-picked, community-rated professionals, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Ford Escape V6-3.0L - Hood Latch - Vista, California. Analytical cookies are used to understand how visitors interact with the website. So when I read your post the first thing through my mind is what kind of gas are you using? However, you may visit "Cookie Settings" to provide a controlled consent. Horrible gas mileage on 2012 Ford Escape : r/fordescape - reddit I drove a 2010 Ford Fusion before, getting an average of 24 MPG. The air filters can get clogged and simply need to be unclogged to fix the problem. Use cruise control any and every time you can. It does not store any personal data. Without further ado, here is a more detailed list of the ten reasons your car isnt getting great gas mileage. Another potential issue with poor gas mileage in Ford Escapes is clogged or leaking fuel injectors. Combined MPG on Gas Only: 40. Q: What Causes Poor Gas Mileage in Ford Escapes? Depending on how often you drive your Ford Escape, you can hit those miles quickly or after years of use. If this is just a bitch complain screen , where nothing gets said or done, i cant waste my time,,, if this is going to fords and the dealerships, and something can get done, i well say,,,,,i purchased in Jan 2017 ford escape 2013, its terrible on gas. Clogged Fuel Filter: A clogged fuel filter will also cause problems with gas mileage. This is my first Ford product purchased in all the years of driving and it will be my last. This process is termed purging, which needs to be assisted by the purge valve. Amaze Yourself: Discover the Best Jeep Wrangler TJ LED Headlights! I do a lot of freeway driving and I have averaged 19 mpg when it was reported to get 21-30. major bummer! Reddit and its partners use cookies and similar technologies to provide you with a better experience. With careful handling and routine patience, Ford Escape mileage can last up to 250,000. Over time the filter can become clogged, and will need to be replaced. of activated charcoal used to store and contain fuel vapors until your purge valves open up and allow the engine intakes vacuum to absorb some fuel vapors from the charcoal into the intake manifold of your engine. The complaints are organized into groups with data published by vehicle, vehicle component, and specific problem. The answer to this question is no, they are not the same. I will definitely try and get his help with some other stuff I need done in the future! The EVAP canister is an integral part of your EVAP system, so you need to get yourself acquainted with the symptoms of a bad evap canister listed above to keep your vehicle eco-friendly and running at high efficiency. I do not know what to do but I will not give up as this is awful. When the system is working as designed, and under certain conditions, maximum fuel efficiency will be achieved. In fact, you are probably spending more money by running the dirty air filter than it would cost to change it. The higher the octane rating is, the more resistance your vehicle receives. I bought this 2013 Ford Escape SEL mostly due to style and gas mileage expectations. For the Escape Hybrid, drivers will find an EPA-estimated 582-mile driving range per tank for front-wheel drive and an EPA-estimated 568-miles per tank with the all-wheel drive model. You also want to ensure you use the right fuel type with the right octane rating for your car. This cookie is set by GDPR Cookie Consent plugin. Whats worse is if you have a turbocharged engine because it naturally runs rich, to begin with. Changing the engine air filter is considered a regular maintenance task. Ford Escape Problems: Most Common Issues And Top Complaints - Motor Verso If it doesn't improve soon, I may trade it in for a different make of car and tell anyone that asks never by a ford escape. A: To improve gas mileage in your Ford Escape, you should check the tire pressure, regularly schedule vehicle maintenance, monitor your driving habits and speed limits, avoid excessive idling, use cruise control when appropriate, and check the air filter regularly. Excessive Fuel Consumption - Common Causes And Cures - Danny's Engineportal Very friendly. One of the most common repairs needed to improve gas mileage in Ford Escapes is a tune-up. I put them in a DODGE HEME truck and mileage went from 14 on highway to 19.5 with a CLEAN T bound and IAC valve! Best I thus far got is 19. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. On a $1000 of gasoline purchased over a year, that is $333 of theft out of my pocket, taking food off my table, cheating my kids out of college funds. Dirty Fuel Injectors: Fuel injectors spray fuel into the cylinders where it is mixed with air and ignited. Still shit. Have been keeping track of how much gas this bugger is using, and it seems pretty off. A prevalent symptom of a damaged EVAP canister is when your vehicle has a rough idle. - Kia: I was getting about 260 miles out of tank of 12.7 gallons - Ford: I am getting about 235 miles out of tank of 15.1 gallons Same kind of commute (80% city). Vehicle History's team of automotive experts brings you the most accurate and up-to-date used car information. BIG DIFFERENCE! 0.0 gal/100mi of gas +32 kWh/100mi. Checking the tire pressure and have the alignment checked on regular basis can help prevent this problem. Gas Mileage Tips; Driving More Efficiently; Keeping Your Car in Shape; . But the gas mileage is awful. VALVOLINE is a TERRIBLE OIL in every sense! Went to dealership to check. Q: What Common Problems Impact Fuel Efficiency in Ford Escapes? Aggressive acceleration and hard braking cause the vehicle to use more fuel than necessary and should be avoided when possible. I have a ford escape that is only getting 13 MPG aroung town and 16-17 mpg on the highway. Not really gunning at all, no. The vehicle will not be able to maintain a high speed due to an unstable rpm count, or you might feel a shaking sensation in your vehicle while driving. 1,060 Great Deals out of 27,465 listings starting at, 1,978 Great Deals out of 50,788 listings starting at, 1,566 Great Deals out of 25,234 listings starting at, 1,561 Great Deals out of 23,312 listings starting at, 1,868 Great Deals out of 43,178 listings starting at, 1,180 Great Deals out of 39,314 listings starting at, 1,013 Great Deals out of 14,162 listings starting at, 5,101 Great Deals out of 126,716 listings starting at, 587 Great Deals out of 18,673 listings starting at, 765 Great Deals out of 30,231 listings starting at, 2,166 Great Deals out of 38,848 listings starting at, 611 Great Deals out of 11,627 listings starting at, 572 Great Deals out of 7,458 listings starting at, 565 Great Deals out of 15,426 listings starting at, 23 Great Deals out of 4,515 listings starting at, 28 Great Deals out of 411 listings starting at, 96 Great Deals out of 1,490 listings starting at, 100 Great Deals out of 1,319 listings starting at, 78 Great Deals out of 911 listings starting at. The issue seems to be caused by a faulty EGR sensor, which causes incorrect exhaust gas recirculation pressure. We averaged 60-70 mph - got 31 mpg in the Escape. Thursday, September 11th, 2008 AT 4:34 PM, Thursday, September 11th, 2008 AT 6:05 PM. When movement resumes, your powertrain will be turned back on and youll be on your way with ease. 115. computer (PCM) failure in the 2005 Escape. Is Straight Pipe Legal in Tennessee? As it progresses, the injectors may have to be replaced. I have a Ford Escape that is getting poor gas mileage. The Welcome to rxmechanic.com. Car is rated to get 20 to 32 MPG. Jeep Clutch Recall Involves Gladiator and Wrangler SUVs, read stories from drivers who praise our work. motor but the motor runs My 2016 Ford Escape turns off as soon as i combined. Is there anything I can do to get better gas miles ! Berchel was on time, fast and efficient. I specifically purchased this 2014 Escape for the mileage. Our 2008 Escape Hybrid suddenly had a huge drop in it's fuel economy, and the engine is rev'g rather high. are trademarks of Autobeef LLC, All rights reserved. However, vehicle safety requirements also include strict regulations on the windshields of all automobiles driven on the roadways. P2327 P2327 code definition Ignition Coil J Primary Control Circuit Low What the P2327 code means This trouble code indicates that the powertrain control module has detected a malfunction within the ignition coil circuit that is associated with it. At 5000kms you should start to notice a difference. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Ford Ive heard that. You can keep the car in a garage to keep it warmed up or you might decide to go south for the winter. Would highly recommend! I noted it to the dealer after 3000 miles and they said it should improve around 5000 miles. The shaking feels like its coming from the First, you should press the gas pedal for smooth acceleration and go easy on the brakes. The most fuel-efficient Escape is the front-wheel drive model with the 1.6-liter EcoBoost engine, rated at 26 mpg combined. Get notified about new defects, investigations, recalls & lawsuits for the. Fuel Saving Tip #4: Change Your Spark Plugs 2016 Ford Escape. This issue has affected every Ford Escape model since the vehicle's initial release. The fuel filter screens out contaminants in the fuel, and over time it will become clogged. Poor gas mileage in city driving. A bad canister can cause poor engine performance affecting the vehicles acceleration. Spark Plugs and Wires Replacement GMC Sierra. If the fuel injectors become clogged or start leaking, it can cause the engine to overheat, which will reduce its overall efficiency. Well, yes, it would. Why is my Ford Escape getting bad gas mileage? This type of fault will also illuminate the engine check light. This could be caused by a variety of reasons, such as faulty spark plugs, loose exhaust system components, worn out fuel injectors, or a vacuum leak. Within a few months of its release the SUV was recalled three times, twice. This problem may be covered under warranty. If you get that sound, then your canister purge valve might be alright. There are several steps you can take to improve your Ford Escapes gas mileage if it is currently suffering from poor fuel economy. I forgot more than they ever know. If your vehicle has an EVAP leak due to some faulty parts, it is better to have those parts replaced. The traction control system is designed to help improve vehicle stability and traction on slippery surfaces. I have a ford escape that is only getting 13 MPG aroung town and 16-17 mpg on the highway. As the coolant hit the hot engine there was, once again, a threat for fire. All tires should be checked regularly and inflated to the manufacturer specifications for optimal performance and gas mileage. This website uses cookies to improve your experience while you navigate through the website. But if the repair requires the replacement of various components in your EVAP system, it can build up to a high repair cost. Over time the filter can become clogged, and will need to be replaced. The 2015 Ford Escape has a large and spacious cabin, competent handling, a high dependability rating, and minimal maintenance needs. The dealership said because there is no directive from Ford about this problem, not much can be done. Q: What are the Benefits of Improving Gas Mileage in a Ford Escape? The EVAP canister is linked to your fuel tank through the line of the tank vent. On top of that, the additives used in gasoline are different in the summer than they are in the winter. Only getting average mileage of 15.7 MPG. For more information on how we collect and use this information, please review our Privacy Policy. Adding more air only makes the fuel economy plummet even further. Ford Escape V6-3.0L - Window Motor / Regulator Assembly Replacement (Driver Side Rear) - Peoria, Arizona. I should have listened, although I felt I should support the North American auto industry. Still hovering right around 19-20.5. Again, maybe that has something to do with why I had less issues with the Fusion going as fast. I am stuck in this vehicle for three more years. ; Install a set of IRIDIUM LASER earplugs from DENSO! Instantly book a certified mobile mechanic to come to you, Mechanic diagnoses the problem and quotes necessary repairs, Fair, upfront & transparent pricing for all services. EPA MPG Owner MPG Estimates 2016 Ford Escape FWD 4 cyl, 1.6 L, Automatic (S6) . If this rpm is fluctuating, there is a good chance you are looking at an idling issue. The Ford Escape comes with a three year, 36,000 mile basic warranty, 5 year, 60,000 mile warranty. If they misfire, or are working poorly, this can affect your gas mileage in a negative way. My Titanium has a 2.0T with a 6 speed auto. There is a product called CATA-CLEAN! I used about 3/4 of the tank and so I filled it up with the Iowa ethanol blend they sell up there in Des Moines. I can drive city miles at a speed between 25-45mph for a while and no change. Is there anything I can do to get better gas Try driving in S mode (I saw better mpg in it). DON'T WASTE YOUR TIME: If this fault is left to continue, it can eventually lead to your vehicle not starting. 7. driving too fast. The air filter should also be checked regularly for any signs of clogging; a clogged air filter reduces airflow which has an adverse effect on fuel economy. My husband uses premium, been wondering if maybe I should suck it up and pay the cost difference and start putting that in there. i have spend $70 in 3 days,, just local driving through town,, no out of town driving. I have the vehicle that noted the BEST mileage. Over time the filter can become clogged, and will need to be replaced. while each vehicle reaches its optimal gas mileage at a different speed, efficiency usually decreases rapidly above 50 mph, according to fueleconomy.gov, the u.s. government source for information on energy efficiency. While its normal to experience a small amount of carbon, too much can lead to disaster. In the city I get about 21 and the more I drive I can watch the gas gauge go down. The most common cause of poor gas mileage is a faulty engine sensor like the O2 sensor, MAF sensor, or MAP sensor. Copyright 2023 Mechanic Base. Idling sounds are the best indicator for faulty spark plugs. Ever since I got the car the mileage sucked - thought perhaps it needed to break in - no such luck ! Last week, I only got 19.7 with average speeds of 50MPG. You will need to not drive the vehicle if it is overheating since you may do engine damage if you overheated it. Have been keeping track of how much gas this bugger is using, and it seems pretty off. Instead, it will go back to your gas tank, making it difficult to refuel your tank. Local limit is 70 so I drive about 80 or so. I drove about 5 mph slower this weekend and saw a hike, so Ive been trying to be a little less speedy, too. I just purchased a new 2018 Ford Escape S not long ago. 108. power steering failure in the 2008 Escape. One possible reason your ford escape is getting bad gas mileage is because you could have a clogged fuel filter. IT's VAPORS eat RUBBER PARTS, seals and gaskets! That's likely why you are taking such a big hit. Really pathetic, not even hitting the min 23 mark. I bought the Ford Escape because of all the hype about the gas mileage, Well it's a bunch of Bull. Never purchased brand new before, so maybe thats why I didnt notice the issue with my used Fusion. Sadly, theres not a whole lot you can do about this problem. The result is an EPA-estimated 28 city MPG and 34 highway MPG with Front Wheel Drive. Real customer reviews from I drive it at speed limit city, pretty crazy enforcement. Fuel is mixed with air, atomized and vaporized in the engine intake system. Why is My Ford Escape Getting Bad Gas Mileage? A Look at the Possible Not sure what they did, but they came back with 20 something reading, and it is still less than what EPA guidelines mentioned. Additionally, replacing oxygen sensors and mass airflow sensors can help improve the engines fuel efficiency. Amongst these systems is an EVAP (Evaporative Emission Control) system. It may be necessary for the mechanic to test drive the car to produce acceptable results and pinpoint the source of the problem. This system closes in fuel vapors and prevents the vapor from escaping into the environment.