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Gas line antifreeze?

8 posts in this topic

Posted

What are people using for fuel system antifreeze? I have the soob install with automotive type carb. Just wondering if adding methyl hydrate is a bad idea considering the fiberglass tanks?

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Posted

I put some methyl hydrate in mine and notice the fuel had a yellowish colour to it in the filters so I think it started  loosening the resin ,I drained it all out so I dont think I would try it again ,dont know what is safe to use

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Posted

Adding methyl hydrate is an extremely bad idea with fiberglass tanks.

If you have good, uncontaminated fuel, why do you need to add anything, anyway?

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Posted

 I am real fussy about my fuel, buying only non ethanol and keeping everything totally clean. Still it will form frost condensation inside the tanks unless they are right full. I do have the water drain at the very bottom and don't have problems with water accumulation. Yesterday though I went out and after trying to start it and then deciding I better pre heat it leaked fuel right through the engine and out the exhaust. Needle valve not seated. I assume a little frost because after I warmed everything up it was fine.

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Posted (edited)

1.  Get a heated hanger.

2.  Move South.

3.  Only fly the one month a year it gets warm there!  :lol:

Just Kidding - I wish I had a cure for that problem!

EDMO

Edited by Ed In Missouri
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Posted

I can't move south...they're paying me way to much up here! I am dreaming about the hanger I admit. What about isopropyl in fuel. I think snowmobilers use it lots.

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Posted

I've noticed it in mine in the winter too but it has never accumulatd enough to be a problem.  I always fill my tanks through a Mr. Funnel to strain out as much water and ice crystals as possible, and then stick the tanks before every flight.  I have never had it become a problem but have made it a practice of switching back and forth on the tanks as I fly so I don't run one completely dry and then switch and find out I have a problem.  I am not about to put any kind of alcohol in them.

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Posted

The turbine engines use a product called PRIST in their jet fuel to prevent ice from forming - Just guessing, that it may be alcohol-based, and sure wouldn't put any into fiberglas tanks.

EDMO

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