Zinc oil supplement
$27 for 5 quarts at Wally's. Free shipping if you buy two. 1000+ ppm ZDDP. Meets all the high end euro specs for anti-wear, which aren't concerned with SAPS content. Fully formulated, so no guessing if your additive is doing more harm than good. Good for most all of our engines, except race engines with super high valve spring pressure flat tappets. Probably fine in most of them, too, but there are better, more expensive choices like RedLine, HPL, Driven, etc.
$27 for 5 quarts at Wally's. Free shipping if you buy two. 1000+ ppm ZDDP. Meets all the high end euro specs for anti-wear, which aren't concerned with SAPS content. Fully formulated, so no guessing if your additive is doing more harm than good. Good for most all of our engines, except race engines with super high valve spring pressure flat tappets. Probably fine in most of them, too, but there are better, more expensive choices like RedLine, HPL, Driven, etc.