I pulled this info right off their product pages on the Mobil.com website.
Wouldn't you think that their Viscosities @ 40 C would be reversed? 5w30 is thicker. Yes it pours very slightly better when cold, but come on. I feel like two different grades are not needed here considering they are almost the same when cold and the 5w is thicker at operating. Just seems weird to me. I would probably rather run the 10w30, esp in a vehicle that calls for Xw20 and burns oil.
Wouldn't you think that their Viscosities @ 40 C would be reversed? 5w30 is thicker. Yes it pours very slightly better when cold, but come on. I feel like two different grades are not needed here considering they are almost the same when cold and the 5w is thicker at operating. Just seems weird to me. I would probably rather run the 10w30, esp in a vehicle that calls for Xw20 and burns oil.
Grade | SAE 5W-30 |
Density @ 15.6 C, g/cm3, ASTM D4052 | 0.852 |
Flash Point, Cleveland Open Cup, °C, ASTM D92 | 230 |
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 | 11.1 |
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 | 64 |
Pour Point, °C, ASTM D97 | -45 |
Grade | SAE 10W-30 |
Density @ 15.6 C, g/ml, ASTM D4052 | 0.859 |
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 | 10.4 |
Flash Point, Cleveland Open Cup, °C, ASTM D92 | 232 |
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 | 66 |
Pour Point, °C, ASTM D97 | -42 |