Synthetic on a high mileage car?
#3
Originally Posted by 96WS6TA
I have 141K on the clock and I run full synthetic. I have had no problems with it.
I would not switch on anything over 100k... probally even over 60k I wouldnt switch. Synthetic will clean out oil deposits, which will cause leaks and can possibly clog up the oil system.
#4
I think 96caprice switch his engine to synthetic, at around 70k. All it took was a few extra oil filters, and it was good to go, as far as I remember he said. I really don't see the issue with switching, ever heard of autorx? it works on the same principle, it's not like adding a solvent to quickly break the deposits up. It just slowly takes it to the oil filter. I guess it could clog the system, but I didn't have any issues with a 160k engine(that was sludged pretty bad), when I put synthtic blend in it(had it around), and did an autorx. the filter filled kinda fast, but other than that, I loved the power gain I got.
#6
Originally Posted by Dragframe
seems most people dont have problems making the change...