Fri, January 15th, 2010, 11:58 PM
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SENIOR MODERATOR
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Join Date: Feb 2009
Location: Somewhere ....
Posts: 4,241
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Quote:
Originally Posted by bconnaway
So over the christmas break i had several changes on my truck. I put in a 2.5" leveling kit, a 1.5" add-a-leaf, 275/65-18 BFG all terrains, and my 89 custom performance tune got uploaded. Ive been running this set-up now for about 2 weeks and noticed my MPG has dropped about 4ish MPG... I expected a little bit of a drop, but this seems a little bit steep?
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Lots of things to factor in?
Winterized gas
Bad gas
Proper air psi
Air filter clean
Fuel filter clean
Spark plugs last changed
Lift/level kits
Oversized tires
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