Motorcycle Oil Grades

The american petroleum institute api defines specifications for engine oils such as sg or se.

Motorcycle oil grades.

We only use original bmw m twin power engine oil in our m cars at the bmw repair guide. The minimum level required for a motorcycle oil to reach jaso ma is 20. Can you use car oil in a motorcycle. Motor oil engine oil or engine lubricant is any one of various substances that consist of base oils enhanced with various additives particularly antiwear additives detergents dispersants and for multi grade oils viscosity index improvers motor oil is used for lubrication of internal combustion engines the main function of motor oil is to reduce friction and wear on moving parts and to.

There are other motor oils on the market that meet the rating and grade of original bmw m oil but we strongly suggest that diy home mechanics think. Viscosity is affected by temperature so different grades or weights of oil have different viscosities and only work properly over a fairly narrow range of temperatures. For good health your bike you have to know what grade engine oil is preferred for your bike. Engine oil manufacturers in turn label containers with the oil rating.

If we say the engine is the heart of motorbike then we can say the engine oil is the heart of the engine. Every motorbike company has different. Bmw m cars and savs have high performance engines that require different oil grades than non m models. So lets break it down on the things you need to know about engine oil grades.

It tells the user which temperature range the oil is and the right amount of viscosity to provide effective lubrication. The grade of oil your motorcycle uses is very important. Most motorcycle manufacturers call for an sg rating introduced in 1995 or higher so always look for the latest designation when buying oil. A typical oem 15w40 running in oil will lose 12 7 part of the reason it needs changing after just 600 miles while a pure fully synthetic ester base oil will lose just 5.

The composition of engine oil is always evolving as new discoveries are made so the defined classifications follow suit with the evolution of oil quality. There is a catch though. Recommended engine oil grade for all motorcycle. Looking at so many different brands with all those numbers and letters can be overwhelming for some like 5w40 10w40 15w50 and so on.

For example at 212 degrees fahrenheit straight 30 weight oil has a vi of 9 3 to 12 4 a 40 weight 12 5 to 16 2 and a 50 weight a vi of 16 3 to 21 8.