10W40 Oil Facts?

Answer A 10W40 oil is a multigrade oil that has two viscosity or flow grades. Prior to the development of multigrade oils, drivers had to use a thicker oil in summer and a thinner oil in winter.

Top Q&A For: 10W40 Oil Facts

What does the"w"mean in 10w40 motor oil?

The "W" signifies the word winter. The purpose of this is to show the resistance level of the oil to flow in winter temperature conditions, with the number before the "W" relating to the specific v... Read More »

Can 10w40 motor oil be used in a motorcycle?

Oil manufacturers, such as Valvoline and Castrol, make motor oil graded 10w40 for cars, motorcycles and other internal combustion engines. Additives designed for wet-clutch applications, such as th... Read More »

Is 10w40 good for a Ford F-250?

No, it is not recommended for the 2010 Ford F-250 with 5.4-liter V-8 engine. Instead, use 5W-20, which is good for all temperatures. Seven quarts of motor oil are needed for your oil change.Referen... Read More »

How to Use 10W40 Oil in a Jeep Cherokee?

Jeep Cherokee engines utilize oil to lubricate the moving parts inside the engine. 10W40 is an oil viscosity or thickness. Different thicknesses of oil work best at different outside temperatures. ... Read More »