I was wondering who uses the "moly" content of an oil as one of their prime factors in determining the brand of oil that they use. Oils such as castrol and pennzoil do contain moly, but other popular oils here, such as cheron supreme do not. Is the lack of moly going to make that big of difference in a car that has it's oil changed every 3000 miles?
Is "Moly" content #1 factor??
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Patman
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It was one of the biggest factors for me when choosing an oil. The benefits of moly are too good to ignore, especially for cold weather when the oil doesn't flow to the parts as quickly.
i do know that mobil's synthetics contain no moly
is the moly content speified in the sl oil spec.?
if yes , then seems all oils would have it.
if no, then why do the api people not think it is needed?
Patman
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quote:Not true. Look at the virgin analysis and used oil analysis on here for Mobil 1 SuperSyn and you'll see moly. The virgin analysis generally shows 80-90ppm, but a few have been a tad lower. Only very early SuperSyn bottles had no moly.
Originally posted by boxcartommie22: i do know that mobil's synthetics contain no moly
Mustang,
A while back Johnny from Pennzoil said that for 3k oil changes the Wolf's Head line of Pennzoil was fine . I believe the concensus is that just about any SL oil will do that job moly or no moly.
I dunno if it's me or not, but since switching from Mobil 1 trisynthetic (no moly) to pennzoil dino (avg. 50ppm moly), my engine became drastically quieter as far as piston slap is concerned. I will always stick with a moly oil.
MolaKule
Staff member
Mobil 1 Tri-Syn with the SL rating (just beofre SuperSyn came out) had moly in it.
I think I only used SJ trisynthetic. Who knows, but mr engine sounded like rocks being shaken in a coffe can with the stuff ![[crushedcar]](/forums/graemlins/crushedcar.gif)
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