The higher the number the thicker the oil.
The W in 10W-30 (example) stands for Winter.
SAE 5 W 30 I use 10W-30.
The w refers to oil weight, or viscosity, the higher the number the thicker the oil. 10W 30 and 5W30 are formulated to change viscosity depending on temperature, with lower number being thinner for winter driving. Generally, 5W30 is better for winter and 10W30 better for summer, or 10 W 40 even better for summer. Check the car manual to be sure for specific type of vehicle.
The owners manual shows ( 5 W 30 ) for the 4.0 liter EFI and SOHC
Any good make of 5 or 10 W -30. If your engine has a lot of miles use the 10 W
10w/40 part syn
It depends entirely on the condition of the engine. If the engine bearings are in good condition, tight and the oil pressure stays up, use a light weight oil such as 5-W-15 or 10-w-30. If the engine oil pressure won't stay up using that viscosity oil, use something a little thicker such as 15-W-40 or even thicker if necessary.
The type of oil that is recommend for a 1989 Honda Accord is 10 W 30. However, if the car is used in colder weather states, 5 W 30 can be used.
The W stands for Winter. The 5w30 flows easier at lower temperatures. It is a 5 weight oil at low temperatures where the 10w40 is a 10 weight at low temperatures.
If: 10w = 25 Then: w = 2.5
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.
SAE (Society of Automotive Engineering) 20W is a quality (viscosity) of oil. SAE J300 has established eleven viscosity grades, of which six are considered Winter-grades and given a W designation. The 11 viscosity grades are 0W, 5W, 10W, 15W, 20W, 25W, 20, 30, 40, 50, and 60. These numbers are often referred to as the 'weight' of a motor oil. The lower the viscosity grade, the lower the temperature the oil can pass the standard test. For example, if an oil passes at the specifications for 10W and 5W, but fails for 0W, then that oil must be labeled as an SAE 5W. That oil cannot be labeled as either 0W or 10W.