I was comparing different motor oils to figure out which one was the best for the price. I was on autozone.com. They had the flash and pour points on their website. I went to a couple of the manufacturer's websites to make sure that the specifications were correct.
Here are the 5w30 conventional oil results:
Valvoline Nextgen flash point: 433*F Pour point: -54.4*F
Motorcraft flash point: 433*F Pour point: -41*F
Mobil 5000 flash point: 430*F Pour point: -33*F
QuakerState flash point: 424*F Pour point: -22*F
Pennzoil flash point: 421*F Pour point: -38*F
AutoZone flash point: 410*F Pour point: -30*F
Havoline flash point: 392*F Pour point: -33*F
Castrol flash point: 392*F Pour Point: -38*F
Valvoline flash point: 220*F Pour Point: -32.8*F
Peak flash point: 206*F Pour Point: -39*F
Flash point is the temperature at which the oil produces vapors that can ignite. Pour point is the coldest temperature at which oil will still flow. My conclusion is that Nextgen is the best because it has the highest flash point and lowest pour point. Plus, it goes through the same refining process as crude oil. The 50% of valvoline's recycled was already refined before being used. So if you think about it, half of the oil was refined twice and therefore cleaner than regular conventional oil. It is 50% refined oil and 50% re-refined oil.
Here are the 5w30 conventional oil results:
Valvoline Nextgen flash point: 433*F Pour point: -54.4*F
Motorcraft flash point: 433*F Pour point: -41*F
Mobil 5000 flash point: 430*F Pour point: -33*F
QuakerState flash point: 424*F Pour point: -22*F
Pennzoil flash point: 421*F Pour point: -38*F
AutoZone flash point: 410*F Pour point: -30*F
Havoline flash point: 392*F Pour point: -33*F
Castrol flash point: 392*F Pour Point: -38*F
Valvoline flash point: 220*F Pour Point: -32.8*F
Peak flash point: 206*F Pour Point: -39*F
Flash point is the temperature at which the oil produces vapors that can ignite. Pour point is the coldest temperature at which oil will still flow. My conclusion is that Nextgen is the best because it has the highest flash point and lowest pour point. Plus, it goes through the same refining process as crude oil. The 50% of valvoline's recycled was already refined before being used. So if you think about it, half of the oil was refined twice and therefore cleaner than regular conventional oil. It is 50% refined oil and 50% re-refined oil.