Quote:
Originally Posted by rickf
The problem with multiviscosity oil, the reason you want to change it fairly frequently, is that with use those coil molecules get broken up. YOu end up with only short pieces, given long enough your 10W30 turns into simply 10.
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Speaking in those terms, I heard that synthetic "breaks down" quicker then conventional. What does your buddy have to say about that? Also... is it okay to use synthetic oil in my 350? I think its from like a 74 camaro. I heard that early synthetic oils broke down seals quicker.... or something like that. Currently I use synthetic in my new cars but wasnt sure if I should just stick with conventional for the old guy.
Thanks for all the help!