Aeromania 1st Gear May 28, 2010 Share May 28, 2010 Six gas mileage myths http://green.yahoo.com/blog/daily_green_dr...eage-myths.html Some of the main points. For more, check out the complete list. Here are a few big myths: It takes more fuel to start a vehicle than it does to let it idle. People are really confused about this one and will leave a car idling for half an hour rather than turn it off and restart. Some kids I know started an anti-idling campaign in the suburbs and are shaming parents into shutting down their cars. Idling uses a quarter- to a half-gallon of fuel in an hour (costing you one to two cents a minute). Unless you're stalled in traffic, turn off the car when stopped for more a few minutes. Vehicles need to be warmed up before they're driven. Pshaw. That is a long-outdated notion. Today's cars are fine being driven off seconds after they're started. As a vehicle ages, its fuel economy decreases significantly. Not true. As long as it's maintained, a 10- or 15-year-old car should have like-new mileage. The key thing is maintenance -- an out-of-tune car will definitely start to decline mileage-wise. Replacing your air filter helps your car run efficiently. Another outdated claim, going back to the pre-1976 carburetor days. Modern fuel-injection engines don't get economy benefits from a clean air filter. After-market additives and devices can dramatically improve your fuel economy. As readers of my story on The Blade recall, there's not much evidence that these "miracle products" do much more than drain your wallet. Both the Federal Trade Commission and Consumer Reports have weighed in on this. There are no top-secret 100-mpg add-ons out there. Using premium fuel improves fuel economy. You might as well write a check to BP if you believe this. Only use premium if your car specifies it. Cheers ↡ Advertisement Link to post Share on other sites More sharing options...
SimonTan 2nd Gear May 29, 2010 Share May 29, 2010 "Replacing your air filter helps your car run efficiently. Another outdated claim, going back to the pre-1976 carburetor days. Modern fuel-injection engines don't get economy benefits from a clean air filter." Wait a minute.....hmmm.....you mean less air intake due to dirty air filter, the ECU will inject lesser fuel to maintain the air-fuel mixture ratio? So it will mean be lower engine power and lower fuel consumption? Clean air filter means more air and more fuel injected = more fuel consumption = more powerful engine output?? Link to post Share on other sites More sharing options...
Vlad1973 Neutral Newbie May 30, 2010 Share May 30, 2010 i would think fuel consumption of a car with dirty air filter vs clean air filter won't differ much. it's not as if you'll lose many kilometres. but having said that, always good to keep it clean lah. ↡ Advertisement Link to post Share on other sites More sharing options...
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