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Well Engine oil manufacturers keep the manufacturing techniques secrets with each others. Most motor oils are made from a heavier, thicker petroleum hydrocarbon base stock derived from crude oil, with additives to improve certain properties. The bulk of a typical motor oil consists of hydrocarbons with between 18 and 34 carbon atoms per molecule. One of the most important properties of motor oil in maintaining a lubricating film between moving parts is its viscosity. The viscosity of a liquid can be thought of as its "thickness" or a measure of its resistance to flow. The viscosity must be high enough to maintain a lubricating film, but low enough that the oil can flow around the engine parts under all conditions. The viscosity index is a measure of how much the oil's viscosity changes as temperature changes. A higher viscosity index indicates the viscosity changes less with temperature than a lower viscosity index.
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Can you top up 20w-50 engine oil with 15w-40 engine oil?
No, use only the weight oil as recommended by the manufacture.
Can I use gear oil instead of engine oil in my car?
Use what the manufacture suggests. Consult the owners manual for the correct oil for the engine.
What kind of car oil do you put in the engine?
Whatever the manufacture recommends.
Is gear box oil and engine oil different?
Yes, use exactly what the manufacture recommends in the engine and gearbox. gearbox oil is normally a much heavier weight of oil.
Can you use 20w40 engine oil in motorcycle engine?
Use only what the manufacture recommends and nothing else.
Is semi synthetic two cycle oil good for engine?
If it is a 2 cycle engine then it is fine. If it is a 4 cycle engine then NO, do not use this oil. Always use the exact oil that is recommended by the manufacture.
When starting engine for the first time what kind of oil should be used to prime engine?
The same oil you intend on using for the life of the engine. Check with the manufacture's specifications.
What harm will you do to you engine by using a higher weight oil?
If you use a higher weight oil than recommended by the manufacture you may cause premature engine wear caused by oil starvation at startup. Use exactly what the manufacture of your vehicle recommends and nothing else.
Is it OK to substitute 10w30 for 30 weight oil in a boat engine?
Use exactly what the manufacture of the engine recommends.
Will it hurt to put 5w20 oil in for change?
It will if that is not the weight that is specified by the manufacture of your engine. Use exactly what the manufacture recommends and nothing else.
Can you use 10w 40 engine oil for your Buick rendezvous?
Follow manufacture recommendations.
Can you use 10w-40 engine oil for your Buick rendezvous?
Follow manufacture recommendations.
