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Show hmlm ryiMd Anti-Freeze Mixtures Lower Boiling Point as Well as Freezing. "Ore of the things that all motorists motor-ists are surprised to II ml In winter Is overheating. They Imaglna this Is a summer complaint exclusively." says a bulletin isued by the mechanical tlrst-cltl tlrst-cltl department of the Chicago Motor club. "The truth of the matter is that the anti freezes motorists have been accustomed lo using lower the boiling point as well as Ihe freezing point. An engine that bolls over, under un-der such circumstances. Is not as hot as one that bolls over with only water In the cooling system, but steam In Ihe circulating system causes unequul cooling tinft Is likely to retard circulation circu-lation at vital spots, overheat In;.' valves and causing trouble In general. Radiator glycerin gives the motorist n low freezing point and a high boiling boil-ing point and is thus more satlsfae-i satlsfae-i tory in this respect than alcohol. Hut owners vdio use glycerin must have tlcht gaskets a.r.d hose ecmn-ctions and the water pump must not leak. Also, and this applies to the use if any anti-freezo. the level of the -cool-In1: solution should never be less (han three inches from the top of the radiator. radi-ator. Make the minimum four inches for cars using the t'lermo-syphon system. sys-tem. Dampness Cr.use of Trouble. "Thunpness causes a let of winter trouble in connection with the Ignition system. One of the common ailments is that the engine that will not start tit nil Just because the high tension current Is Jumping across the outside of the porcelains of the spsirk ping'", i .'inding in (lie open the cooling plugs have collected a little water from condensation. This shorts the current. cur-rent. Instead of passing through to the points the high' tension current gets across on the outside through the wttter path. "If the engine cranks well enough, and Is not being choked to the point of flooding, the motorist should rub dry the spark plug externals with a rag. Burn Out Bearlng3. "If the winter Is at all open, many car owners stand an excellent chance of burning out bearings and scoriug cylinders. With an opportunity to make long trips and burn the road they will run into lubrication troubles of the simplest yet least understood kind. These motorists will lift the hood and Pnd the oil level gauge registering reg-istering full. Then they step on j the gas, burn off the gasoline they thought was oi In the crnnkcase and como to grief because there Is not I enough real oil In the engine to supply sup-ply all the wovfclng purls. I "Don't trust the oil level indicator ! !n winter, Phange oil every r0i j miles, and after starting on a winter ! trip, look at the indicator more fre-! fre-! quenlly so as to be ready with addl-j addl-j tlona! oil If the dilution in the enink- case starts to burn oil." |