CK-4 Archives - Fleet Equipment Magazine
Shell to release T6 full synthetic 0W-40 oil for extreme cold

Shell Lubricants is introducing Shell Rotella T6 Full Synthetic 0W-40 heavy-duty diesel engine oil. This new oil is an upgrade/relaunch of the Rotella T6 full synthetic 0W-40, and now meets API CK-4 requirements.

Why it’s important to test new engine oils

Last month, I mentioned that the North American Council for Fleet Efficiency (NACFE) recommended that fleets switch to the API FA-4 low viscosity lube oils immediately to save fuel and decrease (GHG) emissions. As stated by the report, viscosity is defined as a measure of a fluid’s internal resistance to flow. In a truck’s engine,

Fuels and lubes column
Three new ways oils will be identified and utilized

This December we get a little extra bonus: Three changes in the way lube oils are identified and utilized. First, the API will discontinue the use of the term “energy conserving” on their SL and SM passenger car motor oils (PCMO). The term is discontinued because the engine parts needed to run the laboratory engine

Fuels and lubes column