Recent content by 1972XJ12

My bad, misread your words. That gives sense, describing ZDDP as technology from universe

Higher ZDDP would be bad for modern catalysts I think. Would they add higher ZDDP in modern oil nowadays?:unsure:

What is Shell flexi molecule technology in chemical terms? Did not find any discussion here on forums. Is it another marketing name for added ester? Written on Shell Helix HX7 10W40 for example. I do not want to add any oil containing ester to my old Jaguars (bad experience in the past with...

0.012"-0.014"

Bit worried about high Zinc and API SF. Just a fan of this brand in the past even if it is now owned by other company

€31 for 5litre can. I know Valvoline VR1 Racing 20W-50 and have been using it. This Gulf oil is somehow sympathic to me.

Anybody tried Gulf Classic 20W-50? Plan using it in old carbed V12 Jaguar engine. Love this brand is alive again. Afraid of low TBN number (5.2) though. Zinc content 2400ppm, may be good choice for my old 1972 flat tappets engine.