A atomic8778 New member Dec 1, 2009 #1 how long should you wait before switching to synthetic oil? i know if you buy a new car, you should break it in with the OEM oil, which is probably conventional..., but how long until you can/should switch to synthetic?
how long should you wait before switching to synthetic oil? i know if you buy a new car, you should break it in with the OEM oil, which is probably conventional..., but how long until you can/should switch to synthetic?