I have a simple question, that I suspect has a complex answer.
If I mix 4 quarts of M1 0w20 with 5 quarts of M1 0w40, what are the numbers?
If it is simple math (which I doubt it will be that simple), it would be the following....
Oil Weight
4 x 20 = 80, 5 x 40 = 200, 80 + 200 = 280, 280 / 9 = 31.1
So, is this blend and .... 0w31 ....?
Similarly, what about HTHS?
4 x 2.7 = 10.8, 5 x 3.8 = 19, 10.8 + 19 = 29.8, 29.8 / 9 = 3.31
Does this blend have a HTHS of 3.31?
Then there is Viscosity Index.....
4 x 173 = 692, 5 x 185 = 925, 692 + 925 = 1,617, 1,617 / 9 = 179.7
Does this blend have a Viscosity Index of ....basically 180?
If simple math is the answer..... then this blend seems to be pretty awesome for a 30wt oil.
Weight = 0W31
HTHS = 3.31
Viscosity Index = 180
Why may you ask, am I considering such a blend.....seems nice for my wife's Mercedes GLK for a winter solution, rather than straight M1 0w40. And....I can buy this solution really cheap at my local WalMart. (Yes, we have already had some negative 10 to negative 15 degree mornings this year here in Colorado.)
If I mix 4 quarts of M1 0w20 with 5 quarts of M1 0w40, what are the numbers?
If it is simple math (which I doubt it will be that simple), it would be the following....
Oil Weight
4 x 20 = 80, 5 x 40 = 200, 80 + 200 = 280, 280 / 9 = 31.1
So, is this blend and .... 0w31 ....?
Similarly, what about HTHS?
4 x 2.7 = 10.8, 5 x 3.8 = 19, 10.8 + 19 = 29.8, 29.8 / 9 = 3.31
Does this blend have a HTHS of 3.31?
Then there is Viscosity Index.....
4 x 173 = 692, 5 x 185 = 925, 692 + 925 = 1,617, 1,617 / 9 = 179.7
Does this blend have a Viscosity Index of ....basically 180?
If simple math is the answer..... then this blend seems to be pretty awesome for a 30wt oil.
Weight = 0W31
HTHS = 3.31
Viscosity Index = 180
Why may you ask, am I considering such a blend.....seems nice for my wife's Mercedes GLK for a winter solution, rather than straight M1 0w40. And....I can buy this solution really cheap at my local WalMart. (Yes, we have already had some negative 10 to negative 15 degree mornings this year here in Colorado.)
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