I think Magnatec has been in the spotlight the last couple of years for good reason, the UOA's seem to always look great. Add the fact that it is now full Group III in all weights, is SN+, and is cheaper by about $5 per 5 quart jug, there isn't as much incentive to choose Edge over Magnatec right now. I've used Magnatec, Edge, and Edge EP for the past four years and it's been great, no issues what so ever.