Tvov wrote:
If you have someone do a tire rotation, mark the tires so you can be sure it was actually done. Same with oil filter - if you can reach it, mark it somehow so you know if a new one is put on.
Last time I had the dealer do a tire rotation (car was in for recall work, so I figured why not), I was suspicious that they didn't actually rotate the tires... but I hadn't marked them, so I wasn't sure.
Sometimes, based on current ideas about tire position, the correct thing to do may be to leave them where they were, based solely on tread depth. If they move them at all, they may put the tires with the most tread remaining on the rear drive axle. For the same reason they will insist on putting a pair of new tires on the rear. It's nonsense in my opinion, but it is what they currently teach. All it really does is ensure you end up buying tires sooner than you should have.
Either way, they have to come off to be balanced. You can always tell if that happened.
If I feel like getting involved, I will tell them exactly where I want my tires relocated, and as you said, mark them to be sure that is what they do. But if a set is wearing nicely overall, I just let them do their thing and try not to over think it.