Re: Amazon engine oil vs the world
Based on the change in formulation of Mobil 1 it is clear for me that I will change what I use. Has anyone used Valvoline VR1 Racing 10w-30? The Zinc is 1400 (ppm) and Phosphorous 1300 (ppm). I ask about this product as pricing places it a $33.00 for five quarts at Amazon. If it is not good product for our application so be it. Just looking for input in comparison to the other known good products at are available for our motors. Thanks.
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