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Show IRE'S HINT TO TRUCK pEI First Year's Work Should Be Light, Declares Motor Expert. "Don't overwork your truck the first year if you expect it to render satisfactory satisfac-tory service thereafter," is the warning given truck drivers by A. J. McMullan. lubricating engineer and sales manager for the.Culmer company. "It is common k nowledge among successful suc-cessful truck operators that in the first year not more than 40 per cent of the efficiency value of the truck should be expended if it is to remain in operation and pay the return the operator is entitled enti-tled to on his investment in later years. ' "The fact that -enough attention is not paid to this point Is the real reason why inexperienced operators are forever switching from one make of truck to another an-other In the vain hope of overcoming the inevitable. "When taken iitto consideration that the mechanical structure of the motor truck is even more intricate than a locomotive loco-motive and contains innumerable devices, and all more or less independent, It is easily understood how so many thousands thou-sands of trucks literally fall apart in less than two years' service. "No less important is the matter of truck lubricatalon. This is a task for an expert. It is not sufficient that a man understand his automobile, or even his truck : be must also understand oils before be-fore he is really competent to say which oils and how much should be usd in order to secure the maximum efficiency of his truck with the least poss'ble wear and tear. "So insistent are we that the right oils be used for the right purpose that we never sell a man any Culco oil without asking what It is to be used for and if he has been using the wrong oil we set him right. For instance, Culco truck special is made especially for slow-moving, hard -working motor trucks. "The physical properties of our oils such as fire test and viscosity, the latter being taken ar working temperature of engine, also the break-down test, which Is taken at that point when tho oil bo-gins bo-gins to dlsintegratr, is made a matter of study and not left to guesswork or chance by us. "In fact, the Culco label on an oil is a certificate of character Truck owners are invited to consult our engineers freely free-ly at any time," concluded Mr. McMuI- |