I was recently at one of these warehouse overstock type stores where they buy pallets of crap and resell it. While there I stumbled into a case of PennGrade Euro Elite Full Synthetic 5w30. Case of 12 quarts for $30. Price seems cheap enough, I can’t see any reason this Euro oil can’t be used in American engines, specifically a couple of Chevrolets, am I missing something?? I’ve never been one to get hung up on brand names and my vehicles tend to get whatever decent quality synthetic oil is available at a great price.