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synthetic oil ?


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I have been using Valvoline VR1 in my engine because it has a higher level of "zinc" which is good for old style engines. So Im told.

See http://www.valvoline.com/faqs/motor-oil/racing-oil for info. Its a conventional oil for racing, but also for street use.

I had synthetic before I changed over. The shop said they did not mix very well. When I changed over I drained it overnight, filled it with 3 ltrs of VR1, ran it for 10 to 15 minutes to mix the oils good and drained it again overnight. Then filled it up with VR1.

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