Small engine oil?

[HawkinsHollow]

Timely post! I have been thinking about what I am going to use in the 23 hp Rato in my mini ex when I get done with the 10 hour break. I just changed the tractor oil and have over half a gallon of T-6 15w-40 left over. Was thinking about using that. I also always always have 1/2 quarts of synthetic 5-30 lleft over from truck and car oil changes. Basically I am seeing it doesn't matter. I have a couple of other small engines I need to change out and will probably use the 5-30 there and will use T6 for the mini ex.

 

[John Fitzgerald]

Briggs and Stratton now has full synthetic 15w-50 in their recommendations. I have used it. It seems quite thick when pouring at 65 degrees outside, about like straight 30 weight. It should protect well when summer mowing in 90 degree heat.

 

[CloverKnollFarms]

Briggs and Stratton now has full synthetic 15w-50 in their recommendations. I have used it. It seems quite thick when pouring at 65 degrees outside, about like straight 30 weight. It should protect well when summer mowing in 90 degree heat.

Yeah, my 29HP Kohler uses 20w50, and it's like a product we used to use on the farm called "engine honey" . It's awful thick. But, the mower runs when ambient is 70-95F and it's air cooled, so it loosens up quick

 

[Alan W.]

Im running 15w-50 in my zero turn with a Kawasaki. Air cooled motors run a bit hot.