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Isopropyl alcohol- red bottle not yellow!

Depending on how much moisture was in the fuel, would it be possible to see if it were there? Taking a quick sample before each ride with say maybe a turkey baster and a glass jar to see...
 
We have been sledding since the late 80's. My dad has put a little Iso-Heet (red bottle) in every tank for as long as I can remember and we've never had a freeze up issue that I know of. I would say cheap insurance from having problems that mess up at least part of your day. If you go to Heet's website, they say that Iso-heet (red bottle) safe for use in 2 and 4 cycle engines carbed or injected. Heet (yellow bottle) safe for use in 4 cylce engines carbed or injected.
 
DD do yourself a favour and test the effect of your iso in your fuel.

Pour some of your ethanol fuel in a clear 1 quart glass jar. Sprinkle in a little water and shake.
Now add a bit of iso and shake. Oops. That iso just took the water out of the ethanol and puddled on the bottom of the jar.
If you want more eye-opening, mix in a bit of the oil you use. You may want to switch brands after that test or you may be good.

Don't use iso if you are using ethanol blended fuel. Even fuels listed as non-ethanol today have funny additives that iso causes this effect (or maybe it is just less than 5% so they don't have to say it has ethanol). If your wondering or want to prove it to yourself if iso can be used, do the simple glass jar test.

I found this out last year when I was having fuel pick-up issues with my PC. There was puddles in the tank below the fuel. Same as everyone above I have been using it in everytank for years.
I tested every brand of fuel available to me in BC and they all produced the same results even though a couple are listed as non-ethanol.

If you research on line there are a few products that help with storage (long and short term) and water dispersal in todays fuel (whatever it may be now lol).
I now use a Lucas product that is readily available to me.
 
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geo, did you take any pics of your bottle tests ? I've used a little iso religiously on my '06 900 RMK and now my '12 Pro with no issues.


Done fishing. Let's go sledding !!
 
Yellow Heet is Methyl alcohol (aka Methanol) and will eat your fuel lines. Not immediately but eventually.

I use an in-tank gas drier/water absorber during storage. I was leaving it in all the time while riding and trailering but my dealer warned me that could cause piston/cylinder damage. The constant vibration forces some of the inner fibrous material through the fabric sleeve where it gets sucked into the combustion cycle.

To minimize moisture from condensation I religiously top off my tank when the day's done. Reducing the total air volume in the tank by keeping it full off gas minimizes condensation.
 
I needed to use some heet once, and I did.

The OTHER however many hundreds of days I've ridden I didn't use it.

I had fun on those days.
 
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