I changed the oil in my old Murray push mower with B&S 3.5 HP motor the other day and added some SL rated Havoline 10-30 oil, from a can that's open and been in garage for years. Is this OK? I live in TN USA. I usually change the oil in it once a year. I only paid $25 for that mower about 3 years ago.
So far it seems to run good on that oil - may be even better than the 30w oil it had in it from last OCI.
So far it seems to run good on that oil - may be even better than the 30w oil it had in it from last OCI.