Engine oil Shell or PENNZOIL

As long as you’re not mixing fuel with it you’ll be fine. All of my stuff runs on basic and cheap T4 Rotella 15w-40. Have never had a single issue

Rotella T6 full synthetic, zero problems, never let me down.

Rotella t6 never let me down cannot get it so Schaeffer's it is. As long as you change it you're good. Schaeffer's has a 5w40 which I like because I see thirty below in the winters

Rotella T6 15w40 is like franks hot sauce, I run that shit in literally everything. Civic, VW tdi, cummins, generator, even my KTM 450 dirtbike. I’ve owned the bike since new and for a very high performance engine at 120 hard hours it looked nearly brand new, I’ve never seen an oil perform like that.

Using penzoil ultra platinum 5w30…cheap and has been great!

Rotella T6 5w-40 and it’s finally easier to find now!

Pennzoil 10W30 full synthetic oil was perfect for my S2000 in CA 0 issues it's also very cheap

South Florida, 2010 GX460 @ 90k miles. I use Pennzoil Ultra Platinum 5w30 year round and either a Wix or OEM filter.

Sounds very nice.

Shell Rotella T6 15w40, has worked fine in my F800GS for 40k miles.

I've run penzoil ultra platinum 5w30 for the last two oil changes. It's great, but running the heavier grade oil I notice the engine is a little sluggish until it's been running for something like 10 minutes, so my next oil change im gonna go back to 0w20 and stick with penzoil ultra platinum because it seems to run cleaner than the valvoline oil I ran before.