JAXFL wrote:
Ok I like 5000 miles, so being I only drive the MH 2000 miles a year, I only need to change it every 2 1/2years, right?
Ya why not. I've already proved that oil in my tractor was just fine after 15 years.....Motor and gear oil last almost indefinite, they do not have an expired time. The issue is the SAE rating and thus oils that sit or are stored normally fail to meet these standards after some years pass.
Used oil, that has gone thru a few or many heating and cooling cycles looses it's properties over time and when sitting will cake up around the edges depending on the air available, but will retain its lubricating properties.
I don't repeat internet here say. I changed the oil in my tractor, I used it, it sat for 15 years, I started it and used it again. It's now been sitting for three years after that.