So I know this has been brought up before according to the message board search I did back in 2005 but in 2017 what is the difference between these two oils by Chevron? I am a devoted fanboy of Chevron Supreme since the price shot down to under SuperTech level at $11.77 for a 5qt jug. They also carry Chevron's Havoline brand in a 5qt for $13.24. Other than a name what is there if any difference between these two products?