Discussion Starter · #1 ·
Just bought 1984 226 Case with Onan B43m 18hp and I want to change the oil. Since I can't get 20W-40 oil, someone recommend Shells Rotella 15W-40 motor oil. Will this be ok?
Really....?? and that's because you are one of those guys who are smarter than the engineers who designed the engine and spent countless hours testing them... RIGHT? :sidelaugh: :sidelaugh:Snotrocket said:I run the 15-40 in my engine without any problems.
But what type of oil did you run in your BR 549 Bob. :thumbsup: :sidelaugh:Bob MacGregor said:I ran two P218s with 15W40 in warmer weather and 5W30 in winter. Did the same with my B48 for years.
Mad Mackie in CT :mrgreen: :mowlawn:
Hi Mark,oleblu72 said:I run Chevron Delo 400 15/40 in my Mack I was thinking about running that in the 448.