Fuel Saving Tips
Hot air is less dense. If the intake air is hotter, the engine computer will sense the intake temperature and squirt in less gas to keep the proper air to fuel ratio. During the winter months, it may be profitable for you to duct the air intake to a warm spot under the hood such as behind the radiator or next to the exhaust manifold. Some of the hot-rodders will install what is known as a 'cold air intake' or some times a 'ram air' system, to increase power. Cold (and therefore, dense) air allows more gas to be used at the same air to fuel ratio, and will produce more power! Therefore, using a "hot air" intake will reduce power, but increase milage. Try setting one up this coming winter, and your winter milage will not be so bad. It will probably not be as good as summer milage, but better than nothing. If you are fording water :D or are unsure about all that plumbing before the air filter box, or your car is under warranty, you *really* *really* should know what you are doing. I have no idea how this will help or hurt with a turbo engine especially with an i/c (maybe insulate that with cardboard?) but if you are willing to try, share your results!
posted by nutmeg on August 25, 2011
this tip works for 27% of voting Fuelly members.