Shell Lubricants announced Wednesday, June 21 that a reformulated Rotella T motor oil will meet all of the specification criteria for the new API CJ-4 service category for diesel motor oil.
The company will make the new oil, designed to work with 2007 on-highway engines, available in bulk and drums July 1; and by quart, gallon or pail Oct. 15. New lower-emissions diesel engines will require an engine oil with different characteristics than is available currently. The new formulation is backward-compatible with pre-2007 engines and can be mixed with CI-4 oils currently on the market.
CJ-4 oils must meet more stringent requirements than previous oil; they must be able to handle higher engine temperatures and higher levels of soot while using new detergent packages that rely on less phosphorus, sulfated ash and sulfur, says Dan Arcy, technical marketing manager for Shell Lubricants. CJ-4 oil “also helps maximize the durability of diesel particulate filters,” Arcy says. Engine OEMs are deploying DPFs to trap emission particles.
The new Rotella T motor oil also has met the specification requirements for Caterpillar ECF-3 and Detroit Diesel 93K218; and has gained Cummins CES 20081, Mack EO-O Premium Plus 2007 and Volvo VDS-4 approvals.
Shell will continue to make its API CI-4 Plus Shell Rotella T motor oils available in bulk and drums to meet customer demand. For large fleets, Shell also will market Rimula Super, which also meets the CJ-4 standard.