Originally Posted By: renegade_987
Saw in the promos page Valvoline is offering 6 qts free of the VR1 racing oil AR. My question is, can it go in my F150 since it is racing oil? Normally I would not use it, but free is free, and O'reilly's has it for 4.99/qt. Not worried about using 10w30 either, I use it now. Thanks!
If your F150 is under warranty, I would not use it. If your catalytic converters fail and they find high ZDDP oil in the sump, they might not honor the warranty. You could substitute 1 or 2 quarts out of 6 quarts of SL or SM oil. That would give you about 900+ ppm Zinc and Phosphorus. The racing oil has less calcium and other stuff that fights acid formation.
Note: I think if your truck burns 1 quart of SM 700ppm Zn/P oil per oil change interval, it will cause more damage to the cats than if it burned a 1/4 quart of 1350ppm Zn/P racing oil per oil change interval.