Although its a yama, thought Don might know a general fuel question

[Manatee Mauler]

First of all, kept my Gambler with my 250 ProXS but I recently purchased a Ranger Ghost 16'9 (yesterday). It has an older yama 4 stroke, 2014 90 with 200 hrs. Is it advised to run noneth fuel in these older 4 strokes or can I just go with the eth grade fuel? I talked with my buddies that have bought the new 4 strokes (yama and mecrs) and they all said they run regular fuel. I posted this in the yama section also. Just thought Don might have some general knowledge being in the business as I trust his opinion regarding any "engine". Thanks.

[mactlman]

2014 will have the newer fuel hoses and motor likely ok up to the 10% rule but non ethanol is likely always better but it has more octane which causes carbon build up also. always gives and takes

[SilverFox579]

Well, boat dealers had to rig boats with ethanol compliant fuel lines in 2009, so yeah, a 2014 outboard would be able to run up to 10% ethanol as well.

[EuropeanAM]

All lines should be compliant, it should be fine up to 10%. In general- I'd recommend sticking with the same as you would for a Merc,