Adding new spare tire into rotation of used tires.

sampsonrustic

New member
Title says it all. I’ve had a full size spare as long as I can remember, but never rotated it, just put it on when needed, repaired original, and put it back. Just got a new-to-me truck, that doesn’t have a full size spare, so I’m going to order one. It’s hard to estimate how many miles are on the current set but I’m guessing 5-10k. Wondering if I should get the spare and immediately add it to the tire rotation as these are still pretty new, or just keep it separate. Having a fifth tire that’s matched in tread is ideal, but eventually
When you destroy a tire you end up with a new one in the rotation anyway. So the alternative, assuming you destroy a tire, is putting two new ones on the axle, and keeping the now good used one as an extra spare.

Btw, I’m new to this forum, but have been a long time reader. Mostly doing single and double overnights off the beaten path, nothing too wild and don’t really expect to kill too many tires. Currently running hankook dynapros.

I searched but didn’t find anything that seemed to discuss this, so I’m wondering if there’s just an obvious way to go about this.
Cheers from SoCal.
 

NatersXJ6

Explorer
A lot depends on the type of tire, but I would just put it in rotation without worrying about it. I go back and forth on rotating 5 versus 4. Most of the reason I rotate 5 is that having one on the back of the Jeep always seems to trash the balance on it. Maybe from the pressure sideways in the mount? Maybe just crap tires? Whatever. They wear fast and I change them pretty frequently.
 

1stDeuce

Explorer
Yup, rotate it in. No worries at all with that low of mileage on your current tires.

The added bonus is that if you keep all 5 around the same tread depth, and you cut one down near the end of the set, you can buy one new tire and just burn down the remaining four tires and get four more that match the new spare and start over. That way your running four tires with matched tread depth even though you bought one new one. I've never cut one down though, so I just burn all five down. You also get 20% get more mileage out of a "set" when you rotate in the spare. :)

When I rotate, I cross the fronts to the rear, and put whichever rear has less tread into the spare positon. Then I cross the remaining rear to the front and put the spare on the other front. I used to try to keep track, but now I just call it as I go based on tread depth, or the flip of a coin. :).
 
When I rotate, I cross the fronts to the rear, and put whichever rear has less tread into the spare positon. Then I cross the remaining rear to the front and put the spare on the other front. I used to try to keep track, but now I just call it as I go based on tread depth, or the flip of a coin. :).
Don't you end up running opposite rotation on the tires because you select whichever rear tire has the most wear? By the third rotation you could be running a tire on the right side that had originally run on the left.
 

1stDeuce

Explorer
Don't you end up running opposite rotation on the tires because you select whichever rear tire has the most wear? By the third rotation you could be running a tire on the right side that had originally run on the left.
Radial tires do not care about direction. I find that crossing them at rotation and hence reversing direction works better to prevent cupping.

Sent from my ADR1776 using Tapatalk
 

shenrie

^^^ hates cars
The wheel and tire setup I have is heavy and I’m lazy. Haven’t had any issues with cupping or irregular wear so far so I just measure tread depth and swap whichever one has the most wear out with the spare. It was left front first 3-4 times, but the right rear was the most worn at the last oil change. I just make sure they wear as evenly as possible. Tread depth gauges are cheap and take the guesswork out of it.
 

sampsonrustic

New member
Thanks for all the replies. It sounds like adding the spare into the mix and rotating every 5000 in one of the suggested patterns is probably my best bet.
 

Wayaway

Member
When I bought new wheels and tires, I bought 5 of each for the express purpose of doing 5 wheel rotations.
 
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