8.5 hp Briggs on swenson sander,oil weight?

[General Grounds]

:blob3: what weight oil do you guys use in your sander engine. i'm servicing now and can not remember where i put the manual? 10w30, 30, 10w40?????? thanks T

[Fish]

I only recommend 30w, 5w30 in cold weather is OK. Never,
never 10w40.
Fish

[General Grounds]

:blob3: found my manit. log on that piece of equipt., thanks FISH, used 30w

[Robert Doubrava]

i use 30w oil in all my equipment.