The best oil for a new OPE engine is one you don't mind dumping after just a few hours of use. It's especially important if the engine does not have a spin-on oil filter. You need to flush out all that break-in debris.
Put in any XW30 oil, run it 2-3 hours, dump it and watch the glitter show!
After that? I'd get a 10W-30 HDEO oil for about the first year of use. If you experience consumption or run it for extended periods in severe heat, etc ... switch to a HDEO 15W-40.
Put in any XW30 oil, run it 2-3 hours, dump it and watch the glitter show!
After that? I'd get a 10W-30 HDEO oil for about the first year of use. If you experience consumption or run it for extended periods in severe heat, etc ... switch to a HDEO 15W-40.