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    Petroleum better than Synthetic in some applications?

    I asked Ernie Elliott Inc., the builders of my 331 stroker, about what kind of oil to run in my new motor. They said 10W40 Havoline, Valvoline or Castrol. They said regular petroleum not synthetic. Man was I shocked.
  2. Y

    The best synthetic motor oil

    Who makes the best synthetic motor oil?
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