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Author Topic:   Gasoline Dryer
Ray posted 02-03-2001 07:36 AM ET (US)   Profile for Ray   Send Email to Ray  
Does "Dry Gas" harm a 2-cycle? I noticed that Merc's gas dryer is isopropyl alcohol. Is there a difference between isop. and methanol with a 2-cycle? Is it better to stick with the water filter than to use either? Ray
triblet posted 02-03-2001 09:49 AM ET (US)     Profile for triblet  Send Email to triblet     
I suspect it's more the hoses and gaskets
than two-stroke vs. four-stroke.

Tis better to keep the water out in the
first place. Keep the tank full (so it's
not breathing and pulling in water vapor
every time the temp goes down or the
barometer goes up.


Ray posted 02-03-2001 08:56 PM ET (US)     Profile for Ray  Send Email to Ray     
Up here in the north it gets very cold from Nov thru March. To store a boat with 160 gallons of fuel for 6 months just to keep the tank full just doesn't seem practical especially with the risk of stale gas in the spring and I don't like the thought of that much gas stabilizer either. So some dry gas seemed easier. Which is harder on hoses etc. the menthanol or isopropyl?
Mark Gallagher posted 02-04-2001 11:20 AM ET (US)     Profile for Mark Gallagher  Send Email to Mark Gallagher     
Go with isopropyl, it's less harmful than methanol on rubber and plastic, I'm in the auto industry and we reccomend Isopropyl.
Ray posted 02-04-2001 10:04 PM ET (US)     Profile for Ray  Send Email to Ray     
Thanks for the help guys.
lhg posted 02-06-2001 06:11 PM ET (US)     Profile for lhg    
Most agree that additives containing any kind of alcohol shold not be added to an internal aluminium tank. It's bad enough that most gas contains it. To remove water from a tank, I recommend MDR's "Waterzorb" which does not contain alcohol at all. A $10 bottle treats 300 gallons of gas during winter storage.

Chuck's advice to keep the tank FULL during winter storage coincides with Whaler's advice. This prevents water condensation which will destroy your aluminium tank from the inside out. Water, which combines with the alcohol, is EXTREMELY corrosive to aluminium.

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