Synthetic Oil versus Regular
My new to me toad is a 2008 Nissan Versa with 115,000 miles. I recently changed oil for the first time and learned that the high mileage oil I put in was synthetic and not regular as had been used by...
Forum Discussion
As Vulcanrider said if it does not leak keep using it. My experience is mixed. When I switched to Syn oil in the MH an old 454 with 50,000 miles I had no trouble. I decided why buy 3 different oils so I used the same 10-30 wt oil in the genset and tow car. The tow car 2002 Toyota Corolla leaked at the pan gasket, and I re-tighten it 3 times and 4 oil changes with regular oil before it stopped leaking. The genset, because of less usage did not show up until the following year or so and just got worse. I could not tell where the leak was coming from. I switched back to regular oil and the leak is slowing down but is still leaking. I might try a blend first on an older eng with a lot of miles and look for leaks. I have 104 k miles on the 454 and it runs great with syn. I saw no difference in MPG or any difference in heat reduction using it.
