Originally Posted by ap72
If your current engine is in good tune, then leave the thing alone, modifications for mileage usually require a LONG pay back period, sometimes longer than the life of the engine/vehicle.
I did the math and this is what I came up with.
save a gallon a day @ $2.75 a gallon (soon to go over 3 bucks)X 365 days = $1003.75. Keep his budget under that and he can get payback in 1 yr.
Would that be considered a long payback period, or am I missing something?