Heavy-duty engine oil meets the new API CK-4 service category and delivers an average 50% more wear protection than required Shell ROTELLA T4 Triple Protection 15W-40 heavy-duty engine oil has been ...
Shell Rotella T4 NG Plus 15W-40 has been specially formulated for use in natural gas-powered vehicles in order to manage their high heat and provide the necessary engine protection. Shell Rotella T4 ...