Thread: D4 TYRE ROTATION

Hi,

whatÂ’s everyoneÂ’s thoughts about having to use a spare thatÂ’s new (full diameter) alongside tyres that are somewhat worn say 50%.

is this an issue if so, then 5 tyre rotation is the only way.
Or is the difference negligible and the transfers/differentials sensors etc fine with this?

I have had to replace one tyre but the others are not worn enough to replace.

FYI IÂ’m talking about k02s 265/65 R18

Originally Posted by Sjcunn

Hi,

whatÂ’s everyoneÂ’s thoughts about having to use a spare thatÂ’s new (full diameter) alongside tyres that are somewhat worn say 50%.

is this an issue if so, then 5 tyre rotation is the only way.
Or is the difference negligible and the transfers/differentials sensors etc fine with this?

I have had to replace one tyre but the others are not worn enough to replace.

FYI IÂ’m talking about k02s 265/65 R18

I always rotate all 5, then you will have even tread amongst the full set and when it comes time to replace you aren't left with one odd tyre or an old out of date tyre.

My tyre man says for 5 way rotation = 2 x rear onto the front and better 2 of remaining 3 on the rear. Don't recall whether cross over from rear to front, but suspect not? I seem to recall various comments about keeping tyres on the same side when rotating?

Thanks for responding.

I get the tyre rotation preferred methods and what not, each to their own.

My query is, is there an issue having a tyre thats got a greater diameter than all the rest.
What are the tolerances allowed.

If your in a remote location and all your tyres are 10-20,000ks from replacement and say have less than 4 mm of tread and you have a blowout and can only change the one to brand new (12mm) of tread. Is that difference an issue?

which means tyres might be 16mm difference in diameter.

Originally Posted by Sjcunn

Thanks for responding.

I get the tyre rotation preferred methods and what not, each to their own.

My query is, is there an issue having a tyre thats got a greater diameter than all the rest.
What are the tolerances allowed.

If your in a remote location and all your tyres are 10-20,000ks from replacement and say have less than 4 mm of tread and you have a blowout and can only change the one to brand new (12mm) of tread. Is that difference an issue?

which means tyres might be 16mm difference in diameter.

You are correct. There are issues with this and has happened to others in the past. The stability control gets in a hissy fit with seeing one tyre rotating significantly differently to the others on the same axle. Also running a pair of tyres quite different size on one axle compared to the other causes issues with the centre differential.

I can’t tell you what the spec is myself, but it’s something on my mind given I have a brand new spare of a different make on mine and variously worn tyres on the car. Sigh, tyre shopping again.

Personally I don't see the issue. If the tyres (old and the "new" spare) are all the same make, size and tread, then fitting the "new" on one corner is not an issue, I.e the difference in diameter (16mm was quoted) or 8mm on radius, doesn't matter. Note the abs (and speed) sensor measures off the pick up ring inside the hub, so from a fixed radial point that is not affected by tyre size. Unless you've mucked around with the CCF so change tyre size significantly, usually to reduce speedo error, fitting a new tyre to a set of other old tyres is a non issue.

From my experience, we were in karajini np, and punctured a tyre on the sharp rocks on the road into one of the gorges. Put the spare on, which was near new, the other tyres had about 50000km on them and then got a new hankook 19" in Tom price, as that's all they had. Drove home the 1600km without an issue.