trw; I've never heard of any 'problems' using it. Just the 'snake oil effect'.
YAH! i have heard a few baad true stories about slick 50
1 guy i know told me he seized his brand new engine
back in the 80"s after changing his oil and filter on my
old tercel it had problem with oil burning thats because
toyota had problems with the valve seals after i used that
crap 3000kms later i went out one day and almost imediatly
had major power loss took it to a shop they said you have
very little compression you need a engine!!!

so call it
snake or Sh!t oil for that matter i no it did harm to my engine
i will never ever use that junk in my cars again and if anyone
out there in there right mind is willing to risk there engine
i say go ahead anyone that thinks they need to use a liquid teflon
coating to stick to there engine is on crack that stuff will
get into places of a tight tolerance engine and do harm believe me the best oil to
use is synthetic