01-24-2016, 07:28 AM
(01-21-2016, 10:52 AM)Boyscout Wrote: Delo Silver SAE 40 = 0.06% (600 ppm) from their web page https://cglapps.chevron.com/msdspds/PDSD...Format=PDF so it is not that high really
Delo 400 Multigrade = 0.15% (1500 ppm) from https://cglapps.chevron.com/msdspds/PDSD...Format=PDF now this is a good level
(01-21-2016, 11:23 AM)Vinay-RS Wrote: I spoke to someone from Castrol and the figures for both GTX HM 20W50 and SAE40 are lower:
Castrol SAE 40 = 0.11% (1100 ppm)
Castrol GTX High Mileage 20W50 = 0.10% (1000 ppm)
Miniac, I think Sean's reason is simply because of the above. The Delo 400 has quite a bit more ZDDP in it.