Heya folks,

Some of the local fishermen use various gasoline additives when they are filling up here, claiming that the additive cleans their fuel injectors and give a little more mileage....these are mostly Johnson 4 stroke engines....it is generally believed that our gas is not as good a quality here in Barbados as one would want...(the octane level is ok - I believe approx 91 but it is thought to be a bit dirty)

What are your thoughts on this? Do the fuel injectors really need cleaning? I will be switching from XD50 to XD100 in a month or so, and I understand this is a better oil for the engine (regardless of the emm setting) but would this help keep the injectors clean as well?

I see that BRP retails 2+4 fuel conditioner, Carbon Guard and fuel system cleaner - are these products necessary???

2006 ETEC 60hp....commercial use...