[cwl1979]

I see you're in Idaho and have temp fluctuations like winter and summer. I'm in Alaska and this is what i use https://www.chevronlubricants.com/en_us/...0w-90.html

I've used chevron lubes for everything except engine oil.

For that i use Shell Rotella T5
https://www.amazon.com/dp/B01LH7LAOO?language=en_US

If you want a high grade hydraulic oil that works in super extreme temps I use. Side note... ITS NOT CHEAP!!
https://www.chevronlubricants.com/en_us/...5606a.html