I’m using two pressure treated 2x4x8′ boards for ramps to load small tractor into the bed of my pickup. I was wondering what the limit would be.

Its time to change the oil in my lawn mower tractor. The place I bought if from no longer has the manufacture recommended oil on sale, and the last remaining bottle I have does not list the weight of the oil. The engine is a 25hp Kohler, 2 cylinder. Outdoor operating temperatures will be approximately [...]