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Hope that wasn't Cormier's Auto Pro in Trenton???Paylrider wrote:I recently purchased a 1992 GS, and when I went to do my first oil change, was going to use Castrol blended synthetic/regular oil. I was told at the garage that Mazda does not recommend synthetic oil in their engines
. My engine has 210000 KM on it, is it true only regular oil is recommended by Mazda, or is blended oil ok
I have heard nasty stories from motorcycle circles that Castrol is not a great oil wrt leaving unwanted residue on the cams and valve train. Mobile1 is very good, although I would recommend babyblues suggestion and go for Motul or my favourite Agip(if I could ever find the stuff again). Just a preference. There's other excellent quality products in Quinte West, Royal Purple and (Red Line - from crappy tire).Paylrider wrote:Thanks for the input, could I use straight synthetic on a car with 210000 km when it was probably using regular oil before? or should I use blended Castrol oil?
The answer to this is probably going to lie within your engine. Depends on the condition of your rings, valve guides & valve seals and gaskets (Valve Cover & oil pan). If everything is in good condition and has been properly maintained with reqular oil changes.. you shouldnt have any problem converting to a full synthetic oil.could I use straight synthetic on a car with 210000 km when it was probably using regular oil before?