NOPE.
DA's recommendations are for *their* engines.

DL's recommendations are for THEIRS.

They don't have to be the same, and may not be, and possibly may not make a whipstitch of difference either way.

It's been written at LEAST a bazillion times in this forum someplace.... maybe a couple of bazillion times.

Varieties in oil brands is competition in the market.
Many similarities exist.
Many differences are present.

When it's all said....
1. Read the instructions
2. Follow the instructions
3. Ask the warrantor if you want to deviate from their recommendations

OR

4. Treat these like they are freakin' chainsaw/weedeater/leafblower/snowmobile/motocross/quadrunners and just run 'em.

I'd bet across the lifetime of these engines (TBO) running them LEAN, on ANY oil, will cause WAY more harm than WHICH kind of oil.

But that's just me..... ol' "Mr. Pennzoil"....