Originally Posted By: gregk24
OP, I suppose the more frequent the rotation the longer the tire life. So every 5K would probably get you the most life out of your tires. I am currently in the process of tire shopping and will most likely go to a 10K miles rotation schedule, less frequent trips to the shop = less potential damage from clumsy, nonchalant techs.
I think you're still missing a logical step thats important . rotating tires does not magically adds tire life. what it does is it evenly distribute out tire wear that might be uneven.
if you rotated so that each tire gets to experience each corner 25% of its life that would be the ideal distribution of wear.
rotating through the cycle with 8stints vs 4stints does not change this distribution of wear and it does not magically reduce the wear. so you aren't goimg to get much returns for going 8 stints vs 4 stintd
If your tires wear unevenly rotating more frequent help distribute the uneven wear from being built ip in one specific spot too much. this can cause one axel has different performance than the other which may then have a drive ability effect. but keep in mind this has no affect on reduction of wear or tire life.
in most cars with good alignment it's mostly now the f/r wear that you want to distribute wear and the side wear can be ignored. ideally then en you can balance wear with just 1 rotation front to back.
say your car is really front dependent snd fronts wear twice as fast as your rears and would wear out the tires in: 60k rears 30k fronts.
you can equalize wear in just 1 rotation, and they'd spend equal time at front/rear. this would be at 20k miles. where fronts were 2/3rds worn, rear 1/3rd worn. then after the swap you get 20k more miles in the other position.
howrver the world is not ideal your alignment can go out of whack, rotating more frequently let's you automatically even out the wear as you go as well as your tire tech to inspect for other issues
now take opposite example and your fronts and rears wear about the same. there is little to no gains from rotating