Quote:
Originally Posted by SoCal 370Z
I wouldn’t take that bet because you're right! Old school, but good school and still followed to the tee by many a mechanic on their own vehicles with basic dino.
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I think the ad-pack is as, or more important than the base-stock in many cases. You need good base-stock, but the ad-pack is what makes many oils good for what they are good for (Shell Rotella T for flat tappet, etc. etc.)