Best Air Intake for Gas Mileage
#1
Best Air Intake for Gas Mileage
Guys I need to replace my air filter as it's filthy.
I have a 98 4wd 5 speed.
I am currently averaging 19.5 mpg in the city which really surprised me as I saw the mileage ratings for my car at 16 city and 20 highway online.
I am thinking that once I replace the filter with a high flowing filter I can pickup maybe 1-2 mpg if I'm lucky. I have read in the past that cold air intakes actually net you worst gas mileage because the air is more dense requiring more fuel and making more hp and worse mileage.
Correct me if I'm wrong. What would you suggest for an air intake? Should I get a k&n filter in the stock location or does a stock filter work better? What about other changes to the intake like smooth tubing or larger tubing etc?
Any other suggestions for better gas mileage?
Thanks for your insight.
I have a 98 4wd 5 speed.
I am currently averaging 19.5 mpg in the city which really surprised me as I saw the mileage ratings for my car at 16 city and 20 highway online.
I am thinking that once I replace the filter with a high flowing filter I can pickup maybe 1-2 mpg if I'm lucky. I have read in the past that cold air intakes actually net you worst gas mileage because the air is more dense requiring more fuel and making more hp and worse mileage.
Correct me if I'm wrong. What would you suggest for an air intake? Should I get a k&n filter in the stock location or does a stock filter work better? What about other changes to the intake like smooth tubing or larger tubing etc?
Any other suggestions for better gas mileage?
Thanks for your insight.
#4
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My vote is stock as well. Most cold air intakes only flow better near max rpm. I sold my cold air intake(which actually made incoming air hotter) because of this reason. Made no difference in mpg.
Check out forums dedicated to saving gas, can't think of any off hand. Most have good info.
I have a scangauge 2 that helps me keep track of my mpg as I drive. Mainly watching my TPS and how it affects my mpg helps me get consistent mileage.
Check out forums dedicated to saving gas, can't think of any off hand. Most have good info.
I have a scangauge 2 that helps me keep track of my mpg as I drive. Mainly watching my TPS and how it affects my mpg helps me get consistent mileage.
#6
Registered User
In the old days, carbs couldn't adjust for changes in temp, or changes in air restriction from a filter, and with a restrictive filter, a carb would run rich. A lot of tall tales may have been true back then.
But now, it's an O2 sensor controlled fuel injection system. A dirty plugged up air filter will limit the peak HP you'll make (engine can't get enough air), but it won't run rich or lean while doing so. A cold air intake might increase the amount of peak HP you can make (fit a little more air/gas in the cylinders) - but won't make the engine run rich or lean either.
If you want better MPG's up the air pressure in your tires. And slow down. And accelerate more slowly. And while it won't affect your MPG's, drive less?
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