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GUARDOL FE® FULL SYNTHETIC DIESEL ENGINE OIL 

PREMIUM FULL SYNTHETIC API FA-4 DIESEL ENGINE OIL; FORMULATED FOR FUEL ECONOMY

Phillips 66® Guardol FE (Fuel Economy) Full Synthetic Diesel Engine Oil is a high-quality API FA-4 engine oil designed for fuel efficiency in 2017 and newer engines that require FA-4.

Guardol FE combines top-grade synthetic base stocks with a proprietary low-SAPS additive package, offering superior engine protection in diesel engines specifying FA-4.
This additive package ensures increased protection of critical engine parts despite the lower HTHS requirements of FA-4.

Guardol FE excels in soot dispersancy, protecting against abrasive wear and soot-induced oil thickening while maintaining good low-temperature pumpability, even with highly soot-laden oil. It offers excellent bearing corrosion protection and guards against sludge and varnish formation.

Additionally, its synthetic formulation enhances thermal stability at high temperatures and improves low-temperature properties compared to conventional diesel engine oils.

Meeting or exceeding the performance requirements of API Service Category FA-4, SN, Guardol FE is approved under the latest OEM specifications for use in low-emission diesel engines. It's suitable for diesel engines operating on diesel fuels with sulfur content up to 500 ppm.

GUARDOL FE® FULL SYNTHETIC DIESEL ENGINE OIL 

Features & Benefits

  • Excellent protection for newer low-emission diesel engines
  • Specially formulated to protect exhaust aftertreatment systems
  • 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

Applications

  • On-highway diesel trucks recommending FA-4 to meet 2017 emissions standards
  • Mixed fleets with diesel and gasoline fueled vehicles

Technical Details

Licenses & Approvals:

Guardol FE is licensed or OEM-certified for:
  • API Service FA-4, SN
  • Cummins CES 20087
  • Detroit Diesel DFS 93K223

Additional Details:

SAE Grade 5W-30
Specific Gravity @ 60°F 0.854
Density, lbs/gal @ 60°F 7.11
Color, ASTM D1500 3.4
Flash Point (COC), °C (°F) 226 (439)
Pour Point, °C (°F) -45 (-49)
Viscosity, Kinematic
cSt @ 40°C 57
cSt @ 100°C 9.9
Viscosity Index 155
Cold Cranking Viscosity, cP @(°C) 5060 (-30)
High-Temp/High-Shear Viscosity, cP @ 150°C 3
Sulfated Ash, ASTM D874, wt % 0.95
Total Base Number (TBN), ASTM D2896 10.1
Zinc, wt % 0.0823