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Re: Antifreeze in gas tank
The gas tank antifreeze additives are for small amounts of water, but being that its main ingredients (ethanol and isopropanol) is similar to antifreeze (ethylene glycol), there should be some dispersion action into the gasoline.
However, I'm guessing any more than a few (~4?) fl-oz of straight antifreeze in the tank would require the tank to be drained. I do not know the dispersion ratio of using an off-the-shelf gas dryer, and I do not recommend using more than one 12-oz bottle per tank since the stuff can affect rubber components and combine to form mild acids that can corrode metal tanks.
Others are welcome to give better info...hope this helps!
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Current Garage:
2009 Honda CR-V EX
2006 Mazda 3i
2004 Chevrolet Silverado 2500HD
2003 GMC Envoy XL
2000 Honda ST1100
2000 Pontiac Sunfire
Vehicle History:
2003 Pontiac Vibe AWD - 1999 Acura Integra GS - 2004 4.7L Dakota Quad Cab 4x4 - 1996 GMC Jimmy 4wd - 1995 Chevrolet C2500 - 1992 Toyota Camry LE 2.2L - 1992 Chevrolet S10 Ext. Cab 4.3L - 1995 Honda ST1100 - 1980 Yamaha XS400 - 1980 Mercury Bobcat.
Last edited by jdmccright; 07-14-2010 at 10:23 AM.
Reason: typo
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