Phillips 66 Guardol Fleet EC 15w-40

Phillips 66 Guardol Fleet EC 15w-40

0.00 LBS

Phillips 66 Guardol Fleet EC 15w-40 Diesel Engine Oil

(Formerly known as Phillips 66 Fleet Supreme EC)

Phillips 66 Guardol Fleet EC 15w-40 is an API CK-4 engine oil developed for use in four-stroke cycle diesel engines designed to meet 2007 and later EPA on-highway exhaust emissions standards. It is specially formulated to be exhaust compatible (EC) for aftertreatment systems using diesel particulate filters (DPFs), diesel oxidation catalysts (DOCs) and/or selective catalytic reduction (SCR). This product is backward serviceable for use in pre-2007 diesel engines, and may be used in mixed fleets with both diesel and gasoline-fueled vehicles.


  • API Service CK-4, CJ-4, CI-4 PLUS, SN (SAE 15W-40 only)

  • Cummins CES 20086

  • Detroit Diesel DFS 93K222

  • Mack EOS 4.5

  • Mercedes-Benz Sheet 228.31 (SAE 15W-40)

  • MTU MTL 5044 Type 2.1 (SAE 15W-40)

  • Renault VI RLD-4

  • Volvo VDS-4.5

  • Ford WSS-M2C171-F1

  • ACEA E9

  • Caterpillar ECF-3, ECF-2, ECF-1-a

  • Chrysler MS-10902 (SAE 15W-40)




  • On-highway diesel trucks equipped with EGR and exhaust aftertreatment systems to meet 2007/2010 emissions standards

  • Older diesel equipment with conventional, non-EGR engines or ACERT engines

  • Off-highway construction, earth moving and mining equipment

  • Mixed fleets with diesel and gasoline-fueled vehicles


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