Volvo S70 Made from 1998 to 2000, this sporty model replaced the 850 sedan and instantly became a hit.

Spare tire

  #1  
Old 08-27-2016, 11:44 AM
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Default Spare tire

Does anyone know if it is safe to use a Spare tire from an S40 size 16 on my S70 size 15 it fist and drive,but I hear from 1 source that it is not safe,and that it can Hurt my transmission,is that true?
 
  #2  
Old 08-27-2016, 12:00 PM
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With AWD transmissions you don't want to use tires of different diameters or you can kill the center diff.
 
  #3  
Old 08-27-2016, 12:13 PM
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My S70 is not AWD
 
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Old 08-27-2016, 03:22 PM
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So anyway, what matters about tires is the outer diameter of the tread, not the rim. If your car is front wheel drive, then the sizes of the two rear tires can be different and it would mechanically have no effect at all. Handling would be affected, and in fact it's affected with the correct size spare. Braking, play close attention and decide yourself it you think it's okay. If they are very different, the ABS will see different speeds and that might cause it to turn a light on or not work exactly right.
 
  #5  
Old 08-29-2016, 05:30 PM
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Thanks Firebird.
This is what I suspected but wasn,t completely sure.
 
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