It is a good oil known for a robust additive pkg similar to that of an oil like Rotella or something; it also is known for keeping a motor clean.
If you want a synthetic blend oil that will protect like a good HM oil will except you have not need for the extra seal conditioners, then the Mystik is a great choice.
about 4 months ago it went from 2.99 per QT to 3.99 per QT literally overnight though!
I use their gear oil and I like it so far. And like Johnny said, the farmers & ranchers know cause they trust their 200,000 dollar combines to the stuff so that should speak of it...but hopefully Citgo did not make any negative changes.