Reply To: Today's Motor Oils
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June 12, 2013 at 4:20 pm
#3132
Anonymous
Inactive
I use Valvoline VR1 20W-50 racing oil that I get from Napa. I use it in my three cars with flatheads engines. According to the label it exceeds API SERVICES SM/SL/CD; whatever that means. The Napa dealer told me that it has zinc in it and I have not had any oil related problems.

