Originally Posted By: OVERKILL
Originally Posted By: 69Torino
Negligible difference, probably less of a variable than battery health. Battery health will affect cranking speed in the cold far more than 5w vs 0w. But if it’s cheaper than by all means!
Depends entirely on how cold it is.
The entire purpose of the CCS test is to qualify an oil's performance relative to the established limit for a given W rating, that is, a maximum viscosity limit at which the cranking speed is affected.
So, if it's -35C and your 5w-20 passed the -30C limit at 5,800cP, it would be ~11,600cP, well above the threshold. On the other hand, the 0w-20 would have to be below the cut-off. And that assumes the 5w-20 didn't hit its gel point.
Thank you for this information. Very informative.
Originally Posted By: 69Torino
Negligible difference, probably less of a variable than battery health. Battery health will affect cranking speed in the cold far more than 5w vs 0w. But if it’s cheaper than by all means!
Depends entirely on how cold it is.
The entire purpose of the CCS test is to qualify an oil's performance relative to the established limit for a given W rating, that is, a maximum viscosity limit at which the cranking speed is affected.
So, if it's -35C and your 5w-20 passed the -30C limit at 5,800cP, it would be ~11,600cP, well above the threshold. On the other hand, the 0w-20 would have to be below the cut-off. And that assumes the 5w-20 didn't hit its gel point.
Thank you for this information. Very informative.