Originally Posted By: Brons2
I disagree with Caterham's characterization of this oil as "too thick for winter use", the pour point is -76! So what if the HTHS is a bit higher than the vaunted Toyota 0w20, I for one don't care a bit...
You should read what I said more closely because I never said RL 0W-20 was "too thick for winter use". What I said was, " if your looking for a light 0W-20 for winter the RL oil which is really a light 30wt is the wrong grade".
The PP is a totally useless spec' in a finished oil and is quite misleading which is why the extreme cold CCS and MRV spec's were developed.
RL 0W-20 has a MRV of 27,000cP which is worse than most if not all 0W-30 oils let alone all 0W-20 oils. By comparison M1 AFE 0W-30 has a MRV at -40 degrees of 13,200cP.