Oil... how does it work? [split]

Hey dumbass, I think I just proved a good 4 of you wrong who were stating that the SAE numbers of viscosity aren’t comparable if the two fluids speeds are measured at different temps.

That’s exactly how they are comparable. You take a fluid, measure it’s speed and record a temperature to know how that fluid reacts at that temperature.

If a fluid acts like a 20 at 32deg (20w) and another fluid acts like a 20 at 210 deg, they have the same viscosity (check the chart). 20w = 20 in cSt’s. Or look at the other chart when the comparison between viscosity of w’s is directly below the non W’s in the same scale.

Now that a few members making uprules that don’t exist out of the way this is going to be much easier. (Travis, Cossey, Shady, Benny)

The speed of a fluid rated as a 5 at 32 degrees is directly comparable to the speed of a fluid rated as a 20 at 210 degrees.