curt248

What kind of gas mileage should I expect in everyday driving with the sc?

Has putting on big wheels and wider tires changed the gas mileage? If so, how much?

Habious

There was a pretty thorough discussion on fuel economy not that long ago (well, maybe 6 months ago).

Check it out.

https://www.clublexus.com/forums/sho...d.php?t=254454

curt248

I looked at that thread b4. I didn't see any info regarding mileage differences b4 and after putting on different wheels.

Habious

Sorry about that....I thought you were asking two different questions there. Didn't have an answer to the second one but, thought I new the answer to the first!

UZ214

it really depend, what kinda wheels you are getting, if your Big wheels are light? maybe forged 20" and wider tires lets say 285/30/20 in the back, your gas mileage will go down somewhat i would say 6%-8%...the more heavy wheels you are going to put in the more worse your gas mileage going to get

vrferrari

I know that on my GS4, when I put on my 275/30/20 combo my "indicated" mileage dropped approximately 10%....24mpg down to 22 mpg with 70% hwy mileage. I say "indicated" because my 20" combo is 1+ inches taller than my stock 17" combo, which throws the odometer off by roughly 5%...my car travels FARTHER than the indicated odometer reading because of the taller tire/wheel combo. If I take that into account, the net-net is that my 20" combo takes roughly 5-6% off my fuel economy, or said another way, 20 miles less on a tank of gas.