1974
Clean Windshields!
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“Clean Windshields!” Ensign, July 1974, 60

Clean Windshields!

The best cleaning agent for windshields is a mixture of four parts wood or rubbing alcohol, one part household liquid detergent, and five parts water. So says Highway Research Record No. 344, after a study of 218 Virginia service stations.—Alton L. Thygerson, Brigham Young University Department of Health Science