Rotella T6: 5W-40
Pour Point, °C (ASTM D97) -45
Kinematic Viscosity (ASTM D445) 169.5 *The lower the better (less overall VII).
@ 100°C mm2/s 14.2 *The higher the better.
@ 40°C mm2/s 87 *The higher the better.
Flash Point, (COC), °C (ASTM D92) 224
Amsoil Formula 4-Stroke 0w-40:
Pour Point °C (°F) (ASTM D-97) -51 ) -60°F
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 14.7
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 83.7
Viscosity Index (ASTM D-2270) 184
CCS Viscosity, cP @ (-35°C) (ASTM D-5293) 6139
Mobile 1 Motorcycle 10w-40:
Pour Point,°C (ASTM D97) -45°F
Kinematic Viscosity, cSt @ 100°C (ASTM D445) 13.1
Kinematic Viscosity, cSt @ 40°C (ASTM D445) 82.0
Viscosity Index 161
I now believe the Mobile 1 is the best choice (especially for the rincon and rubicon). I base this on the fact that there are less VII overall and less VII to break down in these quads. Probably the same for anything that uses engine oil in the tranny. I think the only way to really know what your oil viscosity is at ambient temperature is to run the oil in the quad for say 1,000 miles and then see if it is still the same weight. An oil rated at 10w40 will probably be a 10w30 at that point...depending on manufacturer. But, it has been documented that the mobile 1 is the only one (in the list) to stand the engine oil breakdown test.
2005 Honda Rincon. Stock.
New tensioner, tensioner lifter, cam chain, oil chain, knowledge on how to replace these? Priceless.
Mobile 1 4T lets this quad shift nearly undetectable.
Coming soon: Executioners!
After all, a hole - is a hole - is a hole. Richard Burton "Where Eagles Dare".
Last edited by award; 04-19-2012 at 10:09 PM.