Phillips 66 Lubricants has extended the company’s product quality guarantee to protect heavy-duty fleets against lubricant-related failure in the engine when using the Guardol FE 10W-30 low-viscosity heavy-duty engine oil.

The warranty will cover select model year 2010 and newer modern diesel engines, even when FA-4 oil is not specified by the original equipment manufacturer. It guarantees that Phillips 66 will pay for parts and labor deemed necessary to repair damage to engines if the damage was caused by lubricant related failure.

The warranty will require:

• Engines are used under normal over-the-road operating conditions and serviced with Phillips 66 Guardol FE 10W-30 (API FA-4)

• Lubricants are changed as specified by the engine or equipment manufacturer maintenance schedule

• Written documentation or maintenance records are provided that show the engine or equipment was serviced and maintained at regular intervals as specified by the manufacturer

• The proper lubricant level has been maintained in the engine or equipment through documentation of frequency of oil make-up

Not all Original Equipment Manufacturers have adopted a recommendation for FA-4 oils, but Phillips 66 believes it is important for fleets to feel comfortable about the category as heavy-duty truck production peaks and more new trucks hit the road.

The Guardol FE product is warranted for use in 2010 and newer Detroit Diesel engines and 2014 and newer Cummins, Paccar, Navistar, Volvo/Mack engines.

“It is time for the industry to take better advantage of the new technology that is available through our FA-4 oils,” said Tony Negri, Phillips 66 commercial product manager. “Our new warranty can provide peace of mind to fleets with modern equipment interested in moving toward the most technologically advanced engine oils in the market.”