abysmal mileage! - Toyota Yaris Forums

enobmort42 · 11-08-2009, 04:28 PM

how much impact do larger rims/tires have on MPG??

a couple months ago, i was getting ~35+ mpg city/highway with an un-modded stock engine, stock 15" wheels, no DIY cruise. now, i have 17" rims with obv wider tires, and the diy cruise. the engine is still stock. now, with these last couple tanks of gas, i've noticed HORRIBLE mpgs.. just last night, i got 24 mpg, highway. no weight in my car, just myself and my roommate.

i'm at a loss. i've even had the rims on there since july or so.. i understand that i'll take a hit pushing the wider tires, but geez!

the only other thing i can think of is that i used a fuel cleaner solution a couple tanks ago that i got from the dealership. could that really have had that much of an impact on my fuel economy??

any input is great.. i'm borderline nervous that this is here to stay! =\

11-08-2009, 04:28 PM	#1
enobmort42 First time DIYer Drives: '07 LB Polar White Join Date: Dec 2008 Location: Denver, CO Posts: 434	abysmal mileage! how much impact do larger rims/tires have on MPG?? a couple months ago, i was getting ~35+ mpg city/highway with an un-modded stock engine, stock 15" wheels, no DIY cruise. now, i have 17" rims with obv wider tires, and the diy cruise. the engine is still stock. now, with these last couple tanks of gas, i've noticed HORRIBLE mpgs.. just last night, i got 24 mpg, highway. no weight in my car, just myself and my roommate. i'm at a loss. i've even had the rims on there since july or so.. i understand that i'll take a hit pushing the wider tires, but geez! the only other thing i can think of is that i used a fuel cleaner solution a couple tanks ago that i got from the dealership. could that really have had that much of an impact on my fuel economy?? any input is great.. i'm borderline nervous that this is here to stay! =\ __________________ LED tails - debadged - 17" wheels - LED door handles - Painted Headlights - 30/35% tint - Blue LED Interior - DIY Cruise Control - Python 460HP Alarm - DIY Power Locks - K&N CAI - Lowering Springs

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