Post Inframe Gear Lube

[JimT]

Post inframe, about 45,000 miles now. Last oil used about 1/2 gal oil, first half of this oil I added nearly a gallon (I think I was a little below full to begin with), but the second half hasn't seen any drop in oil at all. Blow by seems to have nearly disappeared recently too.

First oil sample was a little high in the expected areas, but second sample everything dropped to low/normal levels.

Did the overhead not long ago, a little tight on about half the valves. The rest were either slightly loose or close to normal. Getting ready for another oil change in a couple weeks. What would be the recommended gear lube for my current situation? 80w90 or 85w140? I'm thinking 80w90 but figured I'd ask anyway.


Also, completely unrelated, but it popped up in my walmart shopping... It's about time for a hydraulic fluid change for my Western snow plow. Of course mfg recommends their own brand. I saw walmart has a hydraulic oil, about $22.50 for 2 gallons. Anyone have any suggestions? Never bought/used hydraulic oil before so not sure if there's anything I should be looking for or staying away from.

Thanks guys.