What is the oldest gas you have run in your boat?

[Seadoo 200]

My boat has been sitting a long time, just curious...

 

[zipper]

How much gas is in it? Can you drain it. If not, fill with fresh ethanol free gas and an appropriate dose of Seafoam and run it.

 

[Dave burke]

What’s a long time? I didn’t start one of my boats for 3 years and it was fine. I topped it with fresh gas and Seafoam though, like @zipper says.

 

[Billtex2000]

If it's gonna sit, always put K-100 in.

Amazon.com

 

[FSH 210 Sport]

1-How much gas in it as @zipper asks?
2-Did you treat it before storing the boat?
3-as @Dave burke asks, what’s a ping time?
4-Where as it stored ?
5-Does I still smell gas, or like Turpentine ?

 

[Noko]

I've had mine sit at least 2 years and its run fine. I used 89 with ethanol and put in Marine Stabil and its been fine. I haven't run it empty on that gas sitting so long but filled up with about half a tank. My boat is kept in climate controlled storage at about 45F for the lowest temp. I'll be doing the seafoam on this current tank.

 

[Seadoo 200]

What’s a long time? I didn’t start one of my boats for 3 years and it was fine. I topped it with fresh gas and Seafoam though, like @zipper says.

Yes, 3 years was afraid to say! Stored wirh seafoam , was just worried about the injectors

 

[Seadoo 200]

1-How much gas in it as @zipper asks?
2-Did you treat it before storing the boat?
3-as @Dave burke asks, what’s a ping time?
4-Where as it stored ?
5-Does I still smell gas, or like Turpentine ?

I have starting it and flushing for the past3 years, was just wondering about the injectors

 

[Dave burke]

Once you get it running and properly warmed up, I’d add a fuel injector cleaner. Last year I started up my seadoo Sportster for the first time in 2 years. It started and ran so-so. I then added the injector cleaner and it made a big difference

 

[Seadoo 200]

I will look for the best injector cleaner

 

[Jim_in_Delaware]

What do you do with the old gas if you drain the tank?

Jim

 

[FSH 210 Sport]

I will look for the best injector cleaner

I suggest Techron

 

[Seadoo 200]

What do you do with the old gas if you drain the tank?

Jim

Im trying to avoid that.
I have done it before- take it to a boat dealer, leave it for days and pay a premium price

 

[MrBubbaGump]

It should be fine, I assume you are running 91 octane? You have the 370hp supercharged version if I'm recalling the years correctly? I had a 2007 430 version and there were a few years when I shared it with my uncle before I bought it out from him that it would sit up in Michigan far a couple of years and not get used. Sold it with only 150 hours on it. Never had an issue. The last year and a half I had it I put about 50 hours on it and didn't have any problems from it sitting previously. Just run it down to about an 1/8 a tank fill it up with fresh fuel and I'd change the spark plugs just because its been a few years.

 

[Seadoo 200]

Yes the 370, I can only imagine how sweet the 430 was

 

[feziwig]

I’ve always had good luck diluting stale gas with fresh through my car. Put 1 gallon of stale gas with 7-10 gallons of fresh fuel and you won’t even notice any difference. A lot easier than trying to dispose of it.

 

[MrBubbaGump]

Yes the 370, I can only imagine how sweet the 430 was

The 430 was a lot of fun, I miss it at times. However with all the sand bar hopping I do it just didn't make sense with all the gear and people I brought along. Also it got tossed around pretty good out here even with trim tabs. Rarely was I able to open it up unless I went to a lake or it was a calm day.