The Ford 6.7-liter Power Stroke diesel engine is known for reliability and durability. What type of oil does it use, and how ...
Beyond fuel efficiency, an advantage of properly formulated engine oils with better flow characteristics over those in the SAE 15W-40 grade, is the oil’s ability to reach lubrication points ...
The difference between a heavy-duty motor oil and one that hasn't earned the HD grading is largely a question of viscosity. Heavy duty oils like Valvoline All Terrain SAE 15W-40 are intended to ...
It is a primary component of how SAE oil grades are defined (15W-40, 10W-30, 5W-40, 5W-30, etc.). Absolute viscosity is expressed as centipoise (cP). It is a measure of frictional drag within the ...