Hi

i just wondering if i put all 215/40R18 on my ralliart dosent appear the 4wd service require?
i want to change my tires . Right now im now 215/45R18 thank you i hope u can help me thank again

 

As far as i know, as long as you are running the same dimension on all your wheels, you will be fine.
B!

 

True.

 

yep all 4 must be the same and you'll be good to go

 

This thread came to mind when i sat looking at my left front tire today.
I have a "bump" on the sidewall, which isn't looking nice, and growing, so until i get new rubber, the car will just sit there.
I run 215/45ZR18 (wtf is that Z for?) from Kumho. ECSTA SPT which it seams is run flats, which wont do me any good if i blow out the whole side of the tyre... So, 2 new wheels on order, but, not the same ones.
Will be Kumho Ecsta PS31 215/45R18. I'm hoping a years wear on the old ones wont have managed to make the sizes different enough to throw the system of, and light my warninglights...

Will shift both wheels on the same axle, but have yet to decide if i want the new wheels front, or rear. Will probably make that call on a whim when i'm getting ready to pull the rubber of, and re-mount.