Originally Posted By: 1999nick
Originally Posted By: ccs v2.0
My B&S manual recommends both stright 30 and xW30, but it cautions that use of a multi vis will increase consumption, and to check the oil more frequently.
I use HD30 and it does keep consumption down.
Tell the whole B&S oil story. Their #1 recommendation for all temperatures from -20 degrees to +120 degrees is 5W30 synthetic oil.
In my mower equipped with the Honda GCV 160 I have always used M1 5W30 or 10W30. I have an hour meter on it, and it has right at 550 hours on it now. I purchased it in 2000, and have averaged 55 to 60 hours a year. It has never, in ten years, used ANY oil in my usual 1 year OCI. One year, I had some extra M1 0W30, so I used that. Still did not consume any oil in a one year OCI.
That's the whole story. It's a mower not a snow thrower. My grass does not need mowing when temps are below freezing, much less 20 below.
Straight 30 gets the job done, is less prone to shearing and it is consumed at a lower rate than xW30.