Found some of this at TSC for $2.19/qt or in 2 gallon jugs for $16.99. All I have been able to find out is that it is a Warren product and it is SN GF-5 rated. I picked up enough 5w20 and 5w30 to do two oil changes on my vehicles. There seems to be pretty minimal info out there about this stuff. Does anyone here have any experience with this oil?