77 Lubricants Motor Oil DX1 0W-30

Worth knowing

The Ford WSS-M2C962-A1 line in this 0W-30’s list is worth checking against the viscosity. For cars sold in North America, as the article on Ford codes explains, each such Ford number is tied to a single viscosity grade, and 962-A1 in this series belongs to 0W-20. Among the 14 oils in the catalogue with this code, DX1 0W-30 is the only one that is not a 0W-20: the others have a viscosity at 100 °C of 7.87 to 8.6 mm²/s, this one 10.8 mm²/s. Its sibling in the line, Motor Oil DX1 5W-30, instead claims Ford WSS-M2C961-A1, a number that the article assigns to 5W-30, as well as GM 4718M, GM 6094M and Chrysler MS-6395.

The DX1 0W-30 data sheet also gives the CCS cold-cranking viscosity: 5,000 mPa·s at -35 °C. For the winter grade 0W, the SAE J300 standard allows up to 6,200 mPa·s at that temperature, so the margin to the limit is 1,200 mPa·s.