Valvoline VR1 is the oldest and best selling Racing Oil on the market, but does that mean it is any good? Lake Speed Jr, a world renowned Tribologist, reveals the changes to the Valvoline VR1 formula to the API SP spec and how that has impacted the wear protection of this oil.
Oils across the globe have been changing due to the advent of the API SP and GM dexos 1 engine oil specs, and Lake gets into the chemistry changes behind these specs. Hint: it has to do with Low Speed Pre-Ignition and the Calcium detergent levels.
Here’s a link to another video specifically about LSPI:
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Here’s a link to a video with additional information about API SP oils:
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Can you please do a video penn grade 1.
How would VR1 work in an air cooled mower engine?
I keep hearing that all this doesn’t apply to the VR-1 10w30, that it has a much lower level of zinc. Is this all true Lake? People are saying you don’t recommend VR-1 10w30 for flat tappet engines anymore. What’s the straight story Lake?
who is your dad?
I wonder how this works in a hydrostatic gear on zero turn? They list 20w-50 with high ZDDP. I wonder if anyone has tried this?