- Aug 15, 2005
- Southern Middle Tennesee
studying up on oils for a Seadoo GTI 130/155 and have found these 3 options. my question is why would anyone use the Marine with a lower TBN and higher 4 ball wear test than the ATV specific Amsoil. plus the ATV is 0w40 instead of 10W40 and then you have Rotella T6 5w40 that is known to be a very good oil that will work for my situation and is a lot cheaper than Amsoil. and i am an Amsoil dealer. then to muddy the waters even more i read any 0-10w40 i.e. mobil1 or Pennzoil will work since i don't have the supercharger. just want to get anyone opinion on here as to what they run and why.