What do you do with OEM wheels/tires when you get new set of wheels?
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Originally Posted by Joe Z
Ok - thats good info...
The thread starter has an IS250 AWD so he would need all same wheel & tire sizes on ALL 4 corners, if he deciced to up size to 18's as well..
Joe Z
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The thread starter has an IS250 AWD so he would need all same wheel & tire sizes on ALL 4 corners, if he deciced to up size to 18's as well..
Joe Z
But since many of you suggested keeping extra wheels as back ups due to potential damage, that bring to mind, should I have 5 of each wheel? What if I damage one and the G-spyders or OEMs are discontinued by that time? My proposed set up gives me two sets of 4 wheel alloys.
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I sold my OE tires (Dunlop SportMaxx) to another IS owner on this forum, and mounted my new all-season tires on the stock 18" rims. I thought this would be better than having two sets of rims and tires for the following reasons:
-It's a pain to swap out the wheels twice a year
-Buying new rims would be expensive
-Buying another set of TPMS would only make it worse!
-With all season, you get acceptable summer driving and winter driving good enough for anything except straight-out blizzrard (although I did drive in one of those too, and still managed to get out alive)
-It's a pain to swap out the wheels twice a year
-Buying new rims would be expensive
-Buying another set of TPMS would only make it worse!
-With all season, you get acceptable summer driving and winter driving good enough for anything except straight-out blizzrard (although I did drive in one of those too, and still managed to get out alive)
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Originally Posted by G35TOIS350
Correct. Only 18" size we have found to fit is 225/40-18 on the AWD. You have to use a reinforced tire in that size and run 42psi for proper load.
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The manual adamantly states 35 psi for the fronts and 38 psi for the rears, regardless of stagger, wheel or tire size. So why do you think going up by one inch on the AWD is going to change the required tire quality and pressure?
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Are you saying that AWD makes this difference or somehow going from 17-18 should make you get a different tire and pump it at high pressures?
I am looking at Dunlop XP Sport Maxx or Michelin Pilot Sport PS2 on the 18s for my summer tires (225/40/18s on 18 inch G-Spyders)
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The AWD cars are about 100 lbs heavier front and rear vs. the RWD cars (the reason the RWD cars don't need an xl tire). Because of this, you need a tire that has an extra band of material in the sidewall to properly hold the additional weight. Also need a tad higher psi help the tire hold the weight. Almost all the XL or reinforced tires in that size have a max inflation pressure of 50-51 psi so mid 40's is ok.
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