Quote:
Originally Posted by ScumOne
I'm adding the Lucas ZDDP Zinc Plus additive to Mobil One 15-50w.
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Mobil 1 15W50 is what Mobil specifically recommends for flat tappet cams - it has all the ZDDP needed as it comes out of the bottle.
Link to Mobil 1 Engine Product Guide:
https://mobiloil.com/~/media/amer/us...pecs-guide.pdf
15W50 is on page 3 at the bottom of page.
1200 PPM of Phosphorous and 1300 PPM of Zinc. "