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Thread: what oil in a 350 chevy??

  1. #1
    wet77
    I was wondering what type of oil to use or rather what weight?
    I run 20-50 in my bb ford but what type in a 350 chevy turning 4500rpms??
    Thanks

  2. #2
    Frosty_pop
    I run Castrol GTX 20-50 in all the small blocks I have for my boat..350, 383, 400, 501 all the same oil and no problems

  3. #3
    Omega21
    I run 10-40 Castrol GTX in my 318, my 350, and my 460. No problems that I've ever seen. Also ran fine in my IHC engines, VW's and my 302 when I was younger.
    Now Penzoil on the other hand...
    Todd

  4. #4
    Frosty_pop
    Omega21
    Now Penzoil on the other hand...
    Todd Never run Penziol.... might as well melt candles in your engine. Nothing but wax!!!!

  5. #5
    Omega21
    Is that what that crap was all over the inside of my 302 after it blew up? Sheesh...and all the while I thought it was my main bearings...
    Live and learn I guess :-)
    Todd

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