WINDOWS\Jim\10-99

= October 1999 Monthly Feature = Anti-freeze

Radiator Insured ? No ! Then why take chances ? Our product is made from glycerine , alcohol , distilled water and nothing else . Will not freeze at 40 below zero . ( Text borrowed from the 1923 En-ar-co Petroleum Products catalog ) The 1923 En-ar-co Products catalog lists antifreeze in drums , 1/2 drums , and in 5 gallon cases. I don't believe there were any small lithographed containers for us collectors to find.

En-ar-co Glycerol -40 Antifreeze The cardboard poster at the top of this page (circa 1928) measures 22" x 28" and was called a "window card" Paraffine Oil has now been added to the fomula. In 1929 the "e" was added to the end of 'Glycerole'. Again , bulk packaging meant no lithographed containers . The Company will supply the above "window card" and a supply of four page handout folders free , plus loan the garage operator "a specially constructed instrument for testing En-ar-co Glycerol -40 Antifreeze , with a reading chart". We recommend the monthly inspection as an insurance that costs you nothing , for unless there has been overheating of the engine or loss through leakage , there will be no need to replenish En-arco Glycerol in the radiator during the winter . This was a welcomed improvement over nightly draining of the radiator or replenishing earlier antifreeze solutions that evaporated and/or boiled away .

As good as En-ar-co Glycerol - 40 Antifreeze was , there was room for improvement . In mid-1936 Canadian Oil Companies Limited introduced Slovap Antifreeze Alcohol. The name came from Slow Evaporation and contained high-grade Alcohol to lower the freezing point , Soluble Oil to retard evaporation and a Rust Inhibitor to control corrosion. Advertised as Slovap Anti-freeze Alcohol ( Red ) I assume red is the colour of the product , but was also the colour of the Quart and one Gallon lithographed tins . Attractive red tins featured the Boy and Slate logo . The cardboard sign above has two cutouts for small sample bottles . Samples of Slovap and a competitor's antifreeze , filled the same day , could be compared to show how Slovap remained clean and clear , while the competition's formed rust. --- With Slovap no new rust is formed ---

( Left to Right ) Slovap Anti-Freeze Alcohol (red): mid 1936 to 1938 White Rose Anti-Freeze Ethylene Glycol : 1939 to 1953 Prestone Brand Antifreeze with a White Rose logo: 1954 White Rose Permanent Type Anti-Freeze : 1954 to 1958 White Rose Permanent Type Anti-Freeze : 1958 to 1962 White Rose Antifreeze- division Shell Canada : 1962- 67 -- Identical quarts and gallons of each style were available --

Two different radiator service tags

This photo shows the rear panel of an En-ar-co Bridge Score Pad. These were given out free in the twenties and early thirties . Although it is not visible , the 'enarcogram ' in the boy's slate reads: What if it goes down to zero - That's nothing This was the companies most widely used anti-freeze slogan .

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