Prest-O-Carbon Remover

Attached is an advertisement for Prest-O-Lite Carbon Remover that appeared in the April 11, 1909 Indianapolis Star. This is really a promotion of two options for car owners. One is a service performed by the garage at Fisher Automobile Company and the other is an appeal to "do-it-yourselfers" to purchase a can of this apparent gunk remover. As described in the first two links of this post the solvent was applied directly to the cylinders and valves of the engine which would entail removing the head. For owners with chauffeurs that, in those days, were mechanics the second option makes perfect sense.
 
For me this underscores that the Prest-O-Lite brand was applied to a variety of products by the Prest-O-Lite Company, not just the best known compressed acetylene gas headlights. Prest-O-Lite was founded and led by Carl Fisher and James Allison who were also two of the four founders of the Indianapolis Motor Speedway. This could trigger an academic discussion of marketing and brand extension but I won't go there.