I just purchased a 97 Bobcat 773C and am trying to get all of the service materials together. I'm a bit confused on the hyd fluid. Owners manual calls for bobcat fluid or 10w30. My local rental shop uses NAPA R&O hydraulic fluid for theirs. Anybody know what is best/cheapest?

I'm also leaning toward Rotella 15w40 for the engine oil. Apparently it will also take 10w30 in the engine.

Also calling for propylene glycol instead of ethylene glycol. Thoughts? I know it says NOT to mix them.