Quote:
Originally Posted by Northern300c
The 5w and 0w have nothing to do with economy. They dictate how cold the oil can go before gelling. The lower the number, the lower the pour point.
|
Agreed, the lower the number the lower the cold pour point. It really is the upper number that is
claimed to be the economy number 20 vs 30. I was at Wally's today and Mobil economy oils have a green label, IIRC there was a 0w20 and 0w30 so they are marketing the 0w oils as "fuel economy" oils in addition to having a lower cold pour point.
