If this isn’t updated then I have nothing negative to add about this oil over the long term. The 5 stars is for the PRICE and SERVICE! 1st off on price- better than anywhere else I looked and at $33/pail how can you go wrong? I put this oil in an antique Curtis air compressor that called for” 20 weight motor oil” and this oil is fits the bill considering it doesn’t have detergents and is anti-foaming. The blue color is a cool feature, as is he clear bucket. I’m happy with this purchase and very happy with the info provided by PSC before, during, and after the sale.