Some truck fleets may need to reconsider lubricants.
With many freight-hauling fleets increasing their operations and the imminent (if delayed) introduction of new PC-11 categories, maintenance practices may need to be reviewed, according to Jim Gambill, North America Commercial & Industrial brands manager for Chevron.
Class 8 truck Image: ShulaCuse |
Truck fleets are more frequently operating long haul journeys overnight, while making deliveries in cities and towns during the day.
Highway driving puts less strain on engine oil than the short journeys where engines are switched off more frequently, either manually or via automatic shutdown systems.
The upshot is “the oil is getting heated up more and often,” explained Gambill. “And over time, every increase in average temperature of 20 degrees can cut the oil’s lifespan by 50%."
Gambill's advice is to start by looking closely at oil-analysis data “and pay special attention to the oil’s rate of oxidation and its viscosity performance." Consultation with the oil supplier, engine builder and maintenance staff can help achieve optimum drain intervals.