jhornsby3
Newbie
I live in the Pacific Northwest. Central Oregon close to the coastal range. I use the recommended oils for the boats, and the pick ups. The lawn equipment gets the oils from the boats because the boats might get 20 to 60 hours a year of run time. So the oil is still good and clean. As for the weather, I only use the lawn equipment during the growing season, from the end of March (on a good year) until mid October. I've been running this way for over 30 years with no issues.Do you live in a warm climate, if you do, SAE 30 or SAE 40 would be best in an aircooled engine especially for hot temps