The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to their viscosity characteristics. SAE viscosity gradings include the following, from low to high viscosity: 0, 5, 10, 15, 20, 25, 30, 40, 50 or 60. The numbers 0, 5, 10, 15 and 25 are suffixed with the letter W, designating their "winter" (not "weight") or cold-start viscosity, at lower temperature. The number 20 comes with or without a W, depending on whether it is being used to denote a cold or hot viscosity grade. The document SAE J300 defines the viscometrics related to these grades.
Kinematic viscosity is graded by measuring the time it takes for a standard amount of oil to flow through a standard orifice, at standard temperatures. The longer it takes, the higher the viscosity and thus higher SAE code.
The SAE has a separate viscosity rating system for gear, axle, and manual transmission oils, SAE J306, which should not be confused with engine oil viscosity. The higher numbers of a gear oil (e.g., 75W-140) do not mean that it has higher viscosity than an engine oil.
Most diesels take 5w or 10 w 30 weight oil 15w40 is very common.
Depends on engine. 3.7, 4.7L's 5w30. 5.7L 5w20. Diesel 15w40.
The W stands for Winter. 15w40 is flows as 15 weight oil in the cold temperatures and 40 weight oil when it gets to full operating temperature.
"winter" The oil will act like 15 weight oil in cold weather and 40 weight oil in warm weather.
The 'W' in 15w 40 refers to 'Winter' the cold weather conditions viscosity of the oil. 15W40 engine oil consists of the cold weather properties of 15W oil as well as the high temperature viscosity of a 40.
-15 degrees in the winter and 140 degrees in the summer its the measere of temp the oil is made to with stand the w stands for winter
5 w 30
5 W 30 or 10 W 30
not recommended
15 w 40
The "W" on an engine oil bottle is short for weight. A bottle that says 15W50 will have the weight of the oil at 15 at the coolest point and 50 at its warmest point. If oil is too heavy in the colder months, it will gum up and the engine will not turn over to start.
The engine oil capacity for a 2010 KTM 250 XCF-W is 0.75L. It is also stated that the best oil to use for the 2010 KTM 250 XCF-W is the 10W-40 bike oil.