How much more MPG will I get with a cool air intake?
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Senior Member
Joined: Aug 2005
Posts: 21,337
Likes: 159
From: DFW
factory 31" tire going up to a 35" tire, your truck reads 88.5% of what you're actually traveling. so if your truck said you went 200 miles you actually went 223 miles. So your 11.7 MPGs is actually 13.04MPGs. There thats 1.5 MPG gain just by correcting your mileage.
Formula for your example:
Mileage x 1.115 = correct
Formula for your example:
Mileage x 1.115 = correct
TRUCK OF THE YEAR 2013
Joined: Jan 2002
Posts: 2,176
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From: Knoxville, TN
factory 31" tire going up to a 35" tire, your truck reads 88.5% of what you're actually traveling. so if your truck said you went 200 miles you actually went 223 miles. So your 11.7 MPGs is actually 13.04MPGs. There thats 1.5 MPG gain just by correcting your mileage.
Formula for your example:
Mileage x 1.115 = correct
Formula for your example:
Mileage x 1.115 = correct
http://www.miata.net/garage/tirecalc.html
Senior Member
Joined: Jan 2009
Posts: 3,172
Likes: 0
From: Destin, Florida
factory 31" tire going up to a 35" tire, your truck reads 88.5% of what you're actually traveling. so if your truck said you went 200 miles you actually went 223 miles. So your 11.7 MPGs is actually 13.04MPGs. There thats 1.5 MPG gain just by correcting your mileage.
Formula for your example:
Mileage x 1.115 = correct
Formula for your example:
Mileage x 1.115 = correct
factory 31" tire going up to a 35" tire, your truck reads 88.5% of what you're actually traveling. so if your truck said you went 200 miles you actually went 223 miles. So your 11.7 MPGs is actually 13.04MPGs. There thats 1.5 MPG gain just by correcting your mileage.
Formula for your example:
Mileage x 1.115 = correct
Formula for your example:
Mileage x 1.115 = correct
Technical Article Contributor
Joined: Dec 2006
Posts: 1,584
Likes: 0
From: Sask. Canada
If more mileage is more important than keeping your current setup, you might compromise a little. Maybe a smaller lift (or even just a leveling kit) with 33" tires? That's still a nice, aggressive stance, and in my opinion, is just more practical all around.
Anyway...that's my .02.....good luck!
Anyway...that's my .02.....good luck!
Senior Member
Joined: Dec 2006
Posts: 43,535
Likes: 817
From: Joplin MO
Back to the original question - an aftermarket intake is a HOT air intake, not a cool air intake. The air under the hood is warmer than the air in the fenderwell, where the stock intake draws its air from. Unless you have a bunch of complementary mods, an aftermarket intake does nothing for you except make more noise and look cool. The stock intake can pass more than enough air for any stock or somewhat close to stock motor.