Ok guys have a quick question and tried to search it will no luck. I just bought new tires for my 19's 225 35 19. However two of my old tires are still good 235 35 19. The differnce between the two is 1.07%. Is the magic number between the two sizes suppose to be within 3% so you don't mess up your quattro. I would like to keep using the two tires that are good and save my two newer ones for spares.
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