Air cooled OPE engines run pretty hot if used for very long.
Oil can get to 230-250°. Conventional oil starts breaking down at that temp.
Synthetic oil hold up to the heat better.
10W-40, 5W-40, 15W-40, etc. are all good oil weights to use. Synthetic of course.
My 2¢
Oil can get to 230-250°. Conventional oil starts breaking down at that temp.
Synthetic oil hold up to the heat better.
10W-40, 5W-40, 15W-40, etc. are all good oil weights to use. Synthetic of course.
My 2¢