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photon · 03-26-2008, 08:52 PM

K I got a flat on the Murano, now I've put new tires on there that are slightly bigger than the old ones (265/60R18 vs original 235/65R18), they're less than 5% different for diameter.

But of course the spare is the original size (the bigger one doesn't even fit).

How bad is that for the rear differential (it's the rear left tire)? Obviously we'll get it fixed asap but the bolt that punctured the tire was pretty big, plus my wife drove on it for quite a bit. There's no visible damage, but it's possible the tire isn't repairable, in which case they'll probably have to order in a replacement.

So what does that <5% difference in tire size mean in terms of driving the car? Is it ok to drive for a few days? Should I leave it parked until the replacement tire comes in? Ok to drive but keep it to a minimum and/or under a certain speed?

03-26-2008, 08:52 PM	#1
photon The new goggles also do nothing. Join Date: Oct 2001 Location: Calgary Exp:	Car Question - Tire size differences K I got a flat on the Murano, now I've put new tires on there that are slightly bigger than the old ones (265/60R18 vs original 235/65R18), they're less than 5% different for diameter. But of course the spare is the original size (the bigger one doesn't even fit). How bad is that for the rear differential (it's the rear left tire)? Obviously we'll get it fixed asap but the bolt that punctured the tire was pretty big, plus my wife drove on it for quite a bit. There's no visible damage, but it's possible the tire isn't repairable, in which case they'll probably have to order in a replacement. So what does that <5% difference in tire size mean in terms of driving the car? Is it ok to drive for a few days? Should I leave it parked until the replacement tire comes in? Ok to drive but keep it to a minimum and/or under a certain speed? __________________ Uncertainty is an uncomfortable position. But certainty is an absurd one.