Originally Posted By: Geonerd
I don't see what it has over Mobil's sleeper 10w-30 High Mileage mix.
Apart from an extra dosh of Zn/P and slightly lower pour point (a little more PAO?), 'Zee Oil' is in no way superior.
Current VOA for both are a little hard to find. Here's what I've come up with, please holler if I've missed some data.
(Sorry for the ugly formatting, the tabs went into the bit bucket.)
GC / M1HM1030
Pour Point: -61*C -54
Flash Point: 238*C 231
Viscosity @ 40*C: 68.5 78.2
Viscosity @ 100*C: 12.1 11.79
HTHS: 3.6 3.66
TBN: 10.6 9.87
VI: 179 146
Ag 0 1
Al 0 0
Bo 0? * 226
Ba 0 0
Ca 1957 3215
Cd 0 0
Cr 0 0
Co 0
Fe 1 1
K 0 1
Mg 0/492?** 17
Mn 0 0
Mo 0 87
Na 0 8
Ni 0 0
P 933 926
Pb 0 0
S 6 2005
Sb 0 1
Si 6 7
Sn 0 0
Ti 0 0
V 0 0
Zn 1160 1026
* This seems odd. Zero? Has anyone ever seen Boron in GC?
** A 2005 sample tested 492 ppm; more recent analysis seem to show 0.
As an aside, I'd rather spend my $ on a US product, even if the company is the obnoxious XOM. Being out of work, I can't quite justify spending $40 on Redline.
As a few other people said here, that VOAs by themselves aren't everything, and that an oil should be judged on its performance, etc. And they are all correct regardless of whether or not you think they're going touchy feely and such, but if you really look objectively at the figures you put up, it's plain to see that GC bests M1 in pour point, flash point, VI, TBN, cold performance, etc. Though maybe not by a large margin, but significant nonetheless, IMHO.