I have been playing around quite a bit with the viscosity calculator at Esko.
I was comparing Mobil 1000 5w20 vs. Esso XD3 0w30.
Mobil 1000 5w20
cSt at 40°C 46.7
cSt at 100°C 8.4
Esso XD3 0w30
cSt at 40°C 71
cSt at 100°C 12.1
So here is where I am confused. The Mobil 1000 is a 5 weight while the XD3 is a 0 weight. So the 0 weight should have a lower viscosity at low temperatures? According to the calculator, the 5 weight has a lower viscosity at -10,-20,-30,-40°C. Am is missing something here?
To further complicate things, the Mobil 1000 dyno has a pour point of -30°C while the XD3 synthetic has a pour point of -48°C. How can a lower viscosity product have a lower pout point than one that is much thicker at temperature extremes?
I am still unsure of what to make about CCS & MRV. Could someone also throw these into the big picture and explain how viscosity, pour point, ccs, & mrv contribute to making a good winter oil.
I was comparing Mobil 1000 5w20 vs. Esso XD3 0w30.
Mobil 1000 5w20
cSt at 40°C 46.7
cSt at 100°C 8.4
Esso XD3 0w30
cSt at 40°C 71
cSt at 100°C 12.1
So here is where I am confused. The Mobil 1000 is a 5 weight while the XD3 is a 0 weight. So the 0 weight should have a lower viscosity at low temperatures? According to the calculator, the 5 weight has a lower viscosity at -10,-20,-30,-40°C. Am is missing something here?
To further complicate things, the Mobil 1000 dyno has a pour point of -30°C while the XD3 synthetic has a pour point of -48°C. How can a lower viscosity product have a lower pout point than one that is much thicker at temperature extremes?
I am still unsure of what to make about CCS & MRV. Could someone also throw these into the big picture and explain how viscosity, pour point, ccs, & mrv contribute to making a good winter oil.