Hi ! I running now Castrol GTX 10W40 HM ... and I having a very small seeping at rear main seal and around oil filter housing .. and I always have some oil drops on my parking spot.. but in the last 6 month since I start using Castrol I have a lot less oil seeping and no more oil burn off ! Castrol HM did excellent job ! Best oil I ever used
Now before winter gets in NY ... can I start use synthetic oil like 0W40 in engine? I just worried that is going to leak more ?
Cause of thin oil ! Should I try?
If not.... Will GtX HM is going to protect engine in cold winter . ??? Last winter we had -9 F. but those time I used 5w40 Genuine oil...
How well GTX HM will perform in Cold Climate? Will it worn engine in cold climate?
Now before winter gets in NY ... can I start use synthetic oil like 0W40 in engine? I just worried that is going to leak more ?
Cause of thin oil ! Should I try?
If not.... Will GtX HM is going to protect engine in cold winter . ??? Last winter we had -9 F. but those time I used 5w40 Genuine oil...
How well GTX HM will perform in Cold Climate? Will it worn engine in cold climate?