The under carriage wash at a drive-thru car wash is always no where near as good as using the hand held spray at the low-price do-it-yourself car wash. You know most car washes have both a drive-thru and a do-it-youself spray in different bays.
I mean the 4-minute $3.75 do-it-youself does a hell of a better job with the under spray than then $13 drive-thru that includes an underspray, plus it's $9.25 less expensive.
This is a scientifically proven fact done through extensive car wash testing at 99 different NH car washes in the last two years!
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 .... Banned for life from local thrift store!
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