PC-41 was invented by Loyd Bolin. Loyd Bolin has been an independent auto technician in Tulsa, OK for over 37 years and is inventor of a number of Innovative products. Loyd has a number of accomplishments: Began business in 1970. Bolin Auto Service, Tulsa, Ok. Been in business 37 years. Invented the E-Z Line clutch alignment tool, now E-Z Line II the new improved design. The tool changed the way clutches have been aligned for installation in almost 100 years. Hold 4 U.S. patents and one pending. Has invented several other tools and equipment for use in his shop. Invented the P-C 41 headlamp cleaner after trying several other cleaners on the market. Nothing He tried had the immediate results or cleaning ability. Founded BOTCO Inc. in 1996. Has been on " Newstalk Radio KRMG AM 740 " for over 25 years. Answering questions and giving auto repair advice. The show can now be heard at 7 A.M. Saturday CST.