Browse Publications Technical Papers 2000-01-1988
2000-06-19

Engine Oil Pumpability Study in a Heavy Duty Diesel Truck Engine 2000-01-1988

A 1995, 276kW (370 BHP) diesel engine was instrumented to provide measurements of temperature and oil pressure in five critical engine areas: the oil filter, the main gallery, the rocker shaft, the cam roller follower and the turbocharger. In addition, oil flow measurements were completed at the turbocharger. Using a proprietary test procedure, four different commercial SAE 15W-40 formulations were evaluated at -15 °C.
Significant differences were observed between the test lubricants in terms of flow rate and time for establishing pressure in critical areas of the engine. In addition, with one oil, as a result of the high pressure drop in the filter, the bypass valve stayed open for several minutes, leaving unfiltered oil circulating in the engine. Our findings show that the MRV TP-1 viscosity at -20 °C or -25 °C is not capable of predicting all aspects of pumping performance of lubricants in a modern heavy duty engine.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 17% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Verification of Accelerated PM Loading for DPF Qualification Studies

2009-01-1089

View Details

TECHNICAL PAPER

A Comparison of Modified Elevated Temperature HFRR Test Data With Scuffing BOCLE Results

961946

View Details

TECHNICAL PAPER

Cylinder Bore Polishing in Automotive Diesel Engines-A Progress Report on a European Study

760722

View Details

X