Phillips 66 Guardol

Guardol ECT 15W-40

SAE Grade: SAE 15W40
API: SN, CJ-4, CI-4, CI-4 PLUS
Phillips 66® Guardol ECT (Emission Compatible Technology) Diesel Engine Oil with Liquid Titanium protection additive is a premium quality, part-synthetic API CJ-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 for compatibility with exhaust aftertreatment systems using diesel particulate filters (DPF), diesel oxidation catalysts (DOC) and/or selective catalytic reduction (SCR). It is backward serviceable for use in pre-2007 diesel engines, and may be used in mixed fleets with both diesel and gasoline-fueled vehicles.

    Sub Total: $15.28


    In stock

    Detailed Product Description

    Features & Benefits

    • Excellent protection for newer low-emission diesel engines and older diesel engines
    • Specially formulated to protect exhaust aftertreatment systems
    • Exclusive Liquid Titanium protection additive provides enhanced oxidation resistance and protection against engine wear
    • Outstanding soot control for protection against abrasive wear and soot-induced oil thickening
    • Outstanding resistance to viscosity and thermal breakdown at high temperatures
    • Protects against sludge and varnish formation
    • Protects against rust and bearing corrosion
    • Excellent low-temperature pumpability with soot-laden oil
    • High shear stability
    • Good resistance to foaming and aeration


    • On-highway diesel trucks equipped with EGR and exhaust after treatment 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

    Licenses & Approvals

    Guardol ECT with Liquid Titanium is licensed or OEM-certified for:

    • API Service CJ-4, CI-4 with CI-4 PLUS, CI-4, CH-4, SN
    • Cummins CES 20081
    • Detroit Diesel DFS 93K218
    • Mack EO-O Premium Plus
    • Mercedes-Benz Sheet 228.31 (SAE 15W-40)
    • MTU MTL 5044 Type 2.1 (SAE 15W-40)
    • Renault VI RLD-3 (SAE 15W-40)
    • Volvo VDS-4

    Guardol ECT with Liquid Titanium meets or exceeds the requirements of:

    • ACEA E9-08, E7-08 (SAE 15W-40)
    • Caterpillar ECF-3, ECF-2, ECF-1-a
    • Chrysler MS-10902 (SAE 15W-40)
    • Ford WSS-M2C171-E
    • JASO DH-2 (SAE 15W-40)
    • Mack EO-M Plus
    • Mercedes-Benz Sheet 228.3 (SAE 15W-40)
    • Diesel engines manufactured by OEMs not listed above, where the OEM specifies API CJ-4 engine oil