What oil is recommended

[reel_magic_3]

"1999 johnson 225hp, carb oil

"1999 johnson 225hp, carb oil injected. I was told by the dealer to run XD 30 who sold me the boat, but now a local supply shop has recommended XD 50. Can someone give me some insight on this topic."

 

[doug_bryant]

The XD30 is standard TCW3 2 st

The XD30 is standard TCW3 2 stroke oil while the XD50 is a synthetic blend.

 

[jwbmarine]

"here's some good reading-

"here's some good reading--------> http://www.nmma.org/certification/programs/oils/registeredoil.asp?y=TCW32007"