Originally Posted by IdealConcepts
can I switch over my R to full synthetic even though I have 68K miles on it? Thanks again.
I don't see why not...
Some oils on the market today are 100% syn and are geared towards higher milage cars.
I would put it in your car. Example... A while back I bought a AE86 with 125K on the clock and put M1 oil and to this day the car runs great with 218K miles.