tire size change

[doctony]

just want to know, if i change my tires from 15" to 17", will my fuel consumption increase? or same pa din. thanks

[ReXBadBoy]

yep... it will affect of fuel consumption... tire size, trunk load, driving habit affects alot on FC

[LeapFrog]

weigh your stock tires/rim combo then compare it to your planned upgrades. if the weight increased, expect a decrease in FC (vice versa).

[Type 100]

weigh your stock tires/rim combo then compare it to your planned upgrades. if the weight increased, expect a decrease in FC (vice versa).

The case is usually for the larger wheel/tire combo to increase in weight anyway. Lighter wheels don't mean much if the tire is heavy, which is usually the case for the low-profile ones.

Also it's a question of where the mass of the wheel/tire combo is. On larger combos it's farther away from the center (or the wheel hub, in this case), so it'll take more torque to turn - regardless of weight.

[mR D]

I have a 96 Civic Vti that originally have 17" when I bought it, then shifted to 15" about two years ago. I didn't feel any substantial difference in fuel consumption.