Phillips 66 Guardol

Guardol ECT SAE 10W-30

SAE Grade: SAE 10W30
API: SN, CJ-4, CI-4, CH-4, CI-4 PLUS
Phillips 66 Guardol ECT Diesel Engine Oil with Liquid Titanium protection additive is a 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.

    Sub Total: $14.68


    In stock

    Detailed Product Description

    Phillips 66® Guardol ECT 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 fl eets with both diesel and gasoline-fueled vehicles.

    Guardol ECT with Liquid Titanium is formulated with a blend of synthetic and high-quality Group II base stocks and a proprietary low-SAPS additive package to provide outstanding engine protection in new and older diesel engines. It is fortifi ed with our exclusive Liquid Titanium protection additive for enhanced oxidation resistance and protection against wear. This additive enhancement provides increased engine protection from a strongly bonded titanium shield formed on the surface of critical engine parts, which reduces wear and helps extend component life.

    Guardol ECT with Liquid Titanium has excellent soot dispersancy to protect against abrasive wear and soot-induced oil thickening, and to ensure good low-temperature pumpability even with highly soot-laden oil. It provides excellent bearing corrosion protection and protects against sludge and varnish formation. The synthetic blend formulation provides enhanced thermal stability at high temperatures and improved low-temperature properties compared with conventional diesel engine oils.

    Guardol ECT with Liquid Titanium meets or exceeds the performance requirements of API Service Categories CJ-4 and SN, and is approved under the latest OEM specifi cations for use in low-emission diesel engines. It is backward serviceable for use where earlier API “C” category engine oils, or the concurrent earlier OEM specifi cations, are specifi ed. It is formulated for use in diesel engines operating on diesel fuels with sulfur content up to 500 ppm. However, for applications not using Ultra-Low Sulfur Diesel (ULSD), consult the engine manufacturer for recommended service interval.


    • 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

    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


    • 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