We have a Subaru Outback that has always run on conventional and is at 83,000 miles. Today my wife took the car in for an oil change and the shop put in Mobil 1. The Mrs. asked for M-1 by mistake; our Toyota Matrix gets M-1 so she got em mixed up.
Way back when the Matrix was approaching 100,000 the mechanic recommended Synthetic, so is there any merit to this with the Outback approaching 100,000?
The last UOA with conventional was great- wear metals at or below normal and they commented that 5000 miles would be fine with conventional 5w30.
Anyhow do we have an issue here? Any implication to switching back to Conventional?
Reason I'm asking is I've seen some negative comments over the years about switching over from one to the other.
Way back when the Matrix was approaching 100,000 the mechanic recommended Synthetic, so is there any merit to this with the Outback approaching 100,000?
The last UOA with conventional was great- wear metals at or below normal and they commented that 5000 miles would be fine with conventional 5w30.
Anyhow do we have an issue here? Any implication to switching back to Conventional?
Reason I'm asking is I've seen some negative comments over the years about switching over from one to the other.