I have a new Murray 38" cut with a Briggs 13.5hp USA made engine. Splash lubricated without a oil filter.
I changed the FF oil at 5 hours and the oil was black as new asphalt! I wasn't expecting the oil to be that dirty after only 5 hours. New B&S oil was put in.
I changed the oil again at 5 hours to see if the oil was clearing up but it was as dirty as the first oil change. Again I used B&S oil to fill.
My next grass cutting next week will put me at another 5 hour mark so I'm planning on another oil change.
I do understand about soot turning oil black so I expect this next change will be dirty black also.
Is this normal for a new mower? If so, I'll stop the 5 hour changes and just go with it.
I changed the FF oil at 5 hours and the oil was black as new asphalt! I wasn't expecting the oil to be that dirty after only 5 hours. New B&S oil was put in.
I changed the oil again at 5 hours to see if the oil was clearing up but it was as dirty as the first oil change. Again I used B&S oil to fill.
My next grass cutting next week will put me at another 5 hour mark so I'm planning on another oil change.
I do understand about soot turning oil black so I expect this next change will be dirty black also.
Is this normal for a new mower? If so, I'll stop the 5 hour changes and just go with it.