Different applications and engines require different weights of oil to operate properly and prevent engine wear. Therefore different weights of oil are produced.
Motor oils come in different grades. The higher the grade, the better quality the motor oil. Some high end vehicles require better quality motor oil to run at their utmost. Otherwise, any grade will do.
Because the oil will have a different viscosity than either oil, and they might not combine correctly. It may work okay, or it might not. If the oil doesn't work right, it may burn, smoke, or damage the engine.
As long as it is the same grade of motor oil the brand name should not matter.
From my own understanding, there are different motor oils for different cars. So it is advisable to go for the right one. Please visit www.popularmechanics.com for more details.
Three different types of viscosity weights of oil are single-grade, multi-grade, and high-performance synthetic oils. Single-grade oils have a fixed viscosity rating and are typically specified for use in specific temperature ranges. Multi-grade oils, such as 10W-30, offer a wider operating temperature range due to their ability to flow easily at low temperatures and maintain viscosity at high temperatures. High-performance synthetic oils provide superior protection and performance across a broader range of temperatures compared to conventional oils.
That is variable based on the quality of the crude oil, and refineries can also adjust the production of different oils. The majority of crude is converted to fuel.
why would you want to? Yes you could, the viscosity will average out .
weights 20 through 40 shock oils
They're re-refined.
Pennzoil and Quaker State
Scotland
At any motorcycle shop and better motor factors. NOTE motorcycle oils are a different formulation from car oils. Use of the wrong formulation can cause clutches to stick.