Re: Re: Mobil 1 vs. Valvoline?

All oil is the same as long as the oil has the same API service rating and viscosity. the only diffrence in oils is whether it is full synthetic, Multigrade or reglar oil. Synthetics are made in a lab an have no parafin wax which causes oil to resist flow in cold weather A multigrade oil is a mix of synthetic and regular and well regular is the stuff they get out of the ground

No. Synthetic oil has more additives because additives cost more than the oil. So with synthetic, they can afford to put it in.

Plus synthetic oil does not break down in heat as much.

Because synthetics are made from small molecules, there is much better control of the size and type of the molecules of the oil. This provides for better characteristcs of the oil, like not breaking down at high temps and flowing well at low temps. Plus, less or no parafin is needed.

Multigrade is oil that meets requirements for low-temperature and high-temperature performance requirements.