Prather after engine oil, 3-IN ONE and O-rings..

[TKCastle]

Does anyone use after engine oil? If so when and where do you put it?
Is 3-IN ONE a good oil to use on O-rings that are used inside carbs(high speed Needle etc.)?

Thanks. Mike

[z3usX5]

Just get marvel mystery @ walmart to use. Same thing plus way cheaper.
you can pull the plug and put it in there and the carb. I never use after run.