Hi, i have observe a very interesting relation between the Gravity API weight, pound per gallon with actual base fluid cSt. It seem that the thicker the oil, the heavier is the Gravity API weight and Flash point.
From the sample below, it seem that the Supergard 5w30 & 10w40 is spike with VII to increase it's cSt@100'c to meet 30wt and 40wt.
What do you guys think about this relationship between base fluid cSt and API Gravity theory? does it make sense?
Sample data sheet - Citgo
From the sample below, it seem that the Supergard 5w30 & 10w40 is spike with VII to increase it's cSt@100'c to meet 30wt and 40wt.
What do you guys think about this relationship between base fluid cSt and API Gravity theory? does it make sense?
Sample data sheet - Citgo