They're re-refined.
Refinery.
Rolling friction is used as a lubricant in place of sliding friction in motor oils. Rolling friction occurs when two surfaces move against each other with rolling motion, reducing friction and wear on the surfaces.
Yes. The re-refinement process includes dehydration to remove moisture, filtering to remove fuel, dirt, etc. Once cleaned up the used oil enters the final phase, hydrotreating, just as the new oils do. An example of a recycled/re-refined oil is Valvoline NextGen which contains 50% recycled oil.
Pennzoil and Quaker State
Conventional motor oils have recommended 3,000-mile drain intervals. Synthetics motor oils have recommend 5,000 - 25,000-mile drain intervals.
You might be thinking of Quaker State and Pennzoil.
No, but find out the requirements for the motor. Most normal motor oils don't meet manufactures requirements for wear protection.
Class B extinguishers are used for liquid fires such as cooking oils. motor oils, gas and so on. If you don't expect toever have such a fire you probably don't need a class b extinguisher.
Few Years Back A Test Was Given On Top Selling Motor Oils. Castrol Came Out Number One On The Test. I Saw The Results And List Of Oils. The One I Was Using Came In A Close Second. So I Changed To Castrol Motor It Rated Number One. Don`t Want To Down Play Other Motor Oils. There Is A Bunch Of Great Oils That Work To The Extreme But For Me It Is Castrol.
The points on the motor may need to be cleaned
As long as it is the same grade of motor oil the brand name should not matter.
Most oils will, just look on the bottle. They will list it if it meets it. Penzzoil Platinum and Ultra meet it, and thats why I use. Castrol Synthetic does. Mobil 1 used to, although I have read they do not anymore.