Posted by Dan on March 04, 1999 at 22:11:33:
In Reply to: Synthetic oil posted by Stefan Thibeault on March 04, 1999 at 21:58:41:
It is not adviseable to use synthetic oil until you get a few more miles on the motor. It is indeed true that the seals need to set and it is a fact that synthetic oil will tend to leak as opposed to conventional oils. Why does synthetic tend to leak? It is slicker by nature and will find its way to imperfect seals and such. I would wait until the car had about 20,000 miles on it and use a 5w30 synthetic. By the way I am manager of a Quick Lube and this question comes up about once a week at our shop.
: I drive a 1998 Nisan 200sx se-r and I want to switch to synthetic oil. The car presently has 6000 km and I changed the oil at 2000 km, right after the break in period. For my next oil change, I want to go to synthetic, but I dont know what type or if this is the correct time to do it. One guy told me that I should wait for a few thousand more km so the seals could set. Should I wait?
: The type of oil I was told to use is 5w50 but then someone said I should go for 5w30 so it would be easier on the oil pump.
: Currently, i always use 5w30 in winter and 10w30 in summer, so do I have to do the same with synthetic?