Shell Canada says its "new and improved" Rotella T Synthetic 5W-40 heavy-duty motor oil offers significant improvements in wear protection, soot control, deposit control, heat resistance, and protection in extreme climates. It meets or exceeds API CJ-4 specs, and Shell claims it can improve on fuel economy compared to conventional 15W-40 engine lubes — by up to 1%. It gets there through decreased friction and by reducing the energy used to pump the motor oil through the engine.
That sounds like a small gain, but for a typical truck travelling 160,000 km a year, about 100,000 miles, it means something like 680 litres or 180 gallons. Give or take, thatís somewhere beyond $850.
Shell also says that the new 5W-40 oil showed an average of 34% improvement in wear (ranging from 2 to 90%) in standard industry tests, with substantially improved protection against cylinder-liner wear. This is good news for trucks used for low-speed operations.
Better high-performance ashless chemistry helps keep soot particles separated, Shell says, which protects against thickening and helps keep the motor flowing for good start-up and under all operating conditions. The company claims up to a 36% improvement in soot control.
There are gains claimed in extreme temperatures too. The new Rotella T is said to resist breakdown due to high heat, offering up to a 70% improvement in oxidation protection compared to conventional 15W-40 motor oil and up to 81% fewer deposits than the average CJ-4 15W-40. In severe cold, Shell says you’ll see reliable pumping on start-up at temperatures as low as -35C.
The new Rotella T Synthetic 5W-40 formulation is fine with diesel particulate filters on 2007 engines, but itís also suitable for earlier heavy-duty diesels.
Have your say
This is a moderated forum. Comments will no longer be published unless they are accompanied by a first and last name and a verifiable email address. (Today's Trucking will not publish or share the email address.) Profane language and content deemed to be libelous, racist, or threatening in nature will not be published under any circumstances.