What if i put 10w oil in a lawn mower?

Question

What if i put 10w oil in a lawn mower?

Answer 1

I am thinking, in my car I used to put 10W30 in the summer time - cause it weighed more and this meant it won't break-down as easily.

In the winter time, I'd put 10W20 because it is lighter and would circulate easier since th moitor would be experiencing those " Cold Morning Startups."

For a lawn mower, it never reaches the same temperatures as a car, and it is never operating in such a cold moring either. So I am thinking there is little difference in performance by using either - just as long as the oil is for a 4 cycle engine ( 4 stroke engine ).

Weight matters only once your approaching " The Breakdown Point" temp. or operating in very cold situations - IMO