Higher viscosity oil does not flow as easily as lower viscosity oil, and therefore would not leak as badly. On the other hand, parts of the engine may not be getting enough oil and may be damaged. You are better off just fixing the leak.
the higher the SAE number, the thicker the oil and higher the viscosity of the oil.
The higher the number the higher the viscosity.
The ease with which it flows or how thin or thick it is. the more solid it is the higher the viscosity. As in Oil the thicker it is the higher the viscosity machine oil low viscosity, gearbox oil high viscosity.
Oil viscosity depends on it's temperature. The higher the oil temperature is, leads to higher viscosity and low flow resistance. Cold oil temperature leads to lower viscosity and higher flow resistance
SAE 40 has a higher viscosity.
SAE 40 has a higher viscosity.
That depends entirely on the condition of the engine. If the bearings are not worn, you would do better with a lighter weight oil (lower viscosity). If the bearings are starting to wear a little, you'll need something with a little higher viscosity, such as 10W30 or even higher. The oil pressure gauge is the best indicator of whether you should be using a higher viscosity oil. If the oil pressure drops significantly when the engine is hot and at an idle, switch to a higher viscosity oil. If the oil pressure stays up, don't use the higher viscosity.
No, it will depend on leak-tightness, viscosity of oil etc.
Oil is a viscous liquid. Higher the number on the can, less the viscosity of the oil in it.
Not usually
motor oil. higher viscosity better for hot weather, lower for winter
Grape seed oil