gear oil

Looking at manual attached for my 6' Tar River tiller, it says gear oil in side and center gearbox. I went to hardware store and got these two bottles. Look like the right stuff? For Side Gearbox says SAE 140W. Will this Penzoil SAE 75W - 140 work? For Center Gearbox, it says SAE 80W - 90...

Hi everyone. recently purchased a Titan implements flail mower. Dealer says to put high temp grease in the gearbox instead of the n46 hydraulic and gear oil as the manual says. Anyone have any experience to share by doing this? He states that this is how they service all of their gearboxes.

I am a newbie to TractorByNet. I grew up on a farm long time ago but enjoy the work I can get done around my little 11 acre piece of paradise here in Vermont with a tractor. I own a 2003 Kubota L3010 that I use occasionally for things I couldn't do otherwise so it doesn't get the hours of a...