Does anyone ever tried 5w40 oil from this company?

 

Elf seems too over priced i tend to stick to mobil 1. The only real way to tell anything is to send it in for analysis, however this requires a control to really differenciate. It may be a slightly better oil, but to me anyway synthetic is synthetic. Other people obviously see different but to me its splitting hairs. at the cost id stick with mobil1