M-1 15/50 red cap ?? is not the same any longer??

Greetings from a newbie I found this site posted on my motorcycle forum. I have experience with Amsoil, Mobil & Spectro in use with autos & motorcycles. I am not an authority, just a consumer, so please don't beat up on me here. Myself as well as countless others have had excellent results with M-1 15/50 over the years. My concern is this....I have been believing the M-1 15/50 can't exsist as energy conserving oil because of it's viscosity therefore doesn't have friction modifiers(my bikes wet clutch is happy) & has not had it's antiwear additives changed or diluted possibly making it into a less as effective product as it once was...as far as a wet clutch motorcycle is concerned. Is it what it was all along or has it now been reformulated?? Thanks, Steve F once was