bhamg

Mobil uses moly in many of their oils but I'd say this recent VOA speaks volumes as to their belief in moly as an effective FM and AW additive.

VOA in text format

Mobil 1 Racing 0W-30

Code:Elements PPM
ALUMINUM 0
CHROMIUM 0
IRON 2
COPPER 0
LEAD 2
TIN 2
MOLYBDENUM 1654
NICKEL 0
MANGANESE 0
SILVER 0
TITANIUM 0
POTASSIUM 6
BORON 118
SILICON 14
SODIUM 8
CALCIUM 3152
MAGNESIUM 8
PHOSPHORUS 2202
ZINC 2442
BARIUM 0

cSt Viscosity @ 100�C 62.9
SUS Viscosity @ 210�F 11.03
Flashpoint in �F 415
Fuel % -
Antifreeze % -
Water % 0.0
Insolubles % 0.0
TBN 9.9
TAN
ISO Code

skratch77

Is that accurate? Wow molygen 5w40 has only like 98

bhamg

Mobil 1 Racing 0W-50 has 1297 ppm of moly.

Audi Junkie

Moly's history is from it's use as an additive in piston fighters in combat where, if they ran out of oil pressure from damage or inverted flight, they could limp back to the airbase, even without grenading the engine. (pun intended)

So maybe the same application is intended here, to prevent engine failure....with far more moly than needed for equivalent performance.

There are p[lenty of quality oils that are formulated with zero moly, or a smaller amount of trinuclear moly. The only moly additive I use was for a batch of JASO wet clutch PWC/MC oil that was formulated without friction modifiers for the wet clutch. I used it in 4-stroke auto engine, so the moly did help out, same thing for a diesel oil like Rotella in a gas car, you can add some moly.

Crito

That's because moly sticks to metal which is why it's so great for reducing cold startup wear, especially in cars that dont get driven much. I prefer to mix my own though as all it does after the initial treatment is stick to metal specks floating around creating sludge and maybe even clogging up your filter faster. https://www.napaonline.com/en/p/AICLM2009

Audi Junkie

https://www.eurol.com/en/shop/products/e802315-eurol-engine-oil-treat/2063

https://www.vanderbiltchemicals.com/rtv_chem/products/51155-vanlube-w-324/petroleum-engine-oil-friction-reducers