The wax goes on to create candle wax and petroleum jelly while the dewaxed oil purifies to the attractive lube oil foundation stock. Concerns that occur from this process originate from choosing which type of solvents to work with. Most refineries use MEK Regardless that propane can be used from https://andyezqfu.theideasblog.com/35947614/indicators-on-waste-engine-oil-regeneration-device-you-should-know