Oils I have on hand:
Pennzoil Air Cooled (dino) (the real stuff , no "outdoor" on the label).
Mobil 1 Racing 2T (16 quarts approx)
Putoline MHX (SAE 50, 100% Ester, Jaso C++ ISO, etc)
Lubrication Engineers LE8104 (dino oil with proprietary anti-wear additive, API-TC, haven't tried this one yet, SAE 40)
Oils I will never use:
Lucas Semi synth (many people report extremely dry running even at 32, and 25 to 1, several people reported engines destroyed by this oil after awhile)
Amsoil Saber (not going to get into why, you can find out if you're so inclined and have the time to dig into a bunch of different forums about it).
Amsoil Dominator (sub par rust protection).
Redline Racing 2 stroke (rust, corrosion from hygroscopic esters, Redline should fix the formulation to address this, many have reported rusted internal parts, tarnished carb jets
Klotz R50 (can't stand the smell, disgusting, like a bad cotton candy recipe, only burnt).
Stihl HP Ultra (you can find out why).
Putoline RS959 (do not use anymore because the smell is disgustingly sweet).
Red Armor (formlation cheapened, ester dropped from SDS, yet price remained, obviousl profit driven over quality)