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06-21-2012, 07:21 AM
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#21
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Drives: 440i GC
Join Date: Mar 2012
Location: Wilmington NC
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Quote:
Originally Posted by pnosker
The most cost effective method is buying a $1.79 bottle of -20F washer fluid with 30% meth and adding 2 bottles of yellow 100% meth HEET at a cost of $1.19 each. This gives you just over 1.25 gallons of ~48% meth for the cost of $4.17/1.28 gal or $3.26/gal.
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