Join Date: Nov 2008
Location: Deale, MD
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Google buyyl cellosolve.
I add 1/2 pint of that, and an equal amount of VMP naphtha to 6 gallons and never have a problem.
Because the butyl scrounges water, and the VMP is a powerful solvent that dissolves sludge before it gets a chance to form.
Do you know what elastomers are used in carbs and fuel systems? Butyl, at those levels, is not long-term compatible with neoprene, nitrile, or silicone, in my expereince. I would be concerned about fuel pump diaphragms and hoses.
Elastomers Compatibility Chart, Chemicals beginning with C, like Cadmium Cyanide
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