Can someone explain Visc [email protected]?

[Blue_Goose]

In looking at a Virgin oil analysis I'm not sure what these #'s mean..I see 10.8 for Pennz Plat 5W30 and 14.0 for Valvoline 10W40...I think I remember seeing GC at 12.0. What does these #'s mean and basically are you looking for a higher or lower # here? Thanks...on a knowledge mission Goose

 

[Boaz]

Goose, Basically the higher the number the thicker the viscosity. So if GC is a 12.0 if you look on th e viscosity chart you will see that is at the "thicker" side of a SAE 30 Weight oil on the [email protected] scale. Viscosity Charts Does that help dude?

 

[Blue_Goose]

Excellent...Thanks Boaz! So Plat is right in the middle at 10.8 for a 5W30? Goose

 

[TallPaul]

Here is another excellent chart for you to study.

 

[AndyH]

And another, this one in color