If it's just a street car use the recommended oil. If it's a track car speak with S & J about it. I drove my betty 2 - 3 days a week and tracked it once a month for four years on castrol egde 5w/30. Oil always held up well, was only sprint racing and drags though.
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Bye bye betty blue. Hello F6.
Last edited by nick73; 22-05-2017 at 06:03 PM.
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