I recently picked up four cases of M1 5w50 for the wholesale distributor near my work (Petroalliance / Cleveland). All four cases were API SN, so I sent in a sample to see what (if anything) changed in this formulation.
Good news -- Not much changed! Below is a link to a VOA I had done with API SM M1 5w50 exactly a year ago: API SM M1 5w50 VOA
Below is the VOA for the new SN 5w50:
AL, CHRM, FE, CU, PB, TIN = ALL 0 PPM. Trace of Potassium, Sodium, Silicon.
MOLY = 91
BORON = 242
CALCIUM = 3127
MAGNESIUM = 24
PHOS = 951
ZINC = 1132
kV @ 100C = 16.43 cSt
Flashpoint = 435F
I had them re-test the kV @ 100C, seemed thinner than M1 spec'd -- they verified the 16.43 cSt measurement.
Continue to use the Mobil 1 5w50 SN with confidence!
Matt
Good news -- Not much changed! Below is a link to a VOA I had done with API SM M1 5w50 exactly a year ago: API SM M1 5w50 VOA
Below is the VOA for the new SN 5w50:
AL, CHRM, FE, CU, PB, TIN = ALL 0 PPM. Trace of Potassium, Sodium, Silicon.
MOLY = 91
BORON = 242
CALCIUM = 3127
MAGNESIUM = 24
PHOS = 951
ZINC = 1132
kV @ 100C = 16.43 cSt
Flashpoint = 435F
I had them re-test the kV @ 100C, seemed thinner than M1 spec'd -- they verified the 16.43 cSt measurement.
Continue to use the Mobil 1 5w50 SN with confidence!
Matt