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PAGE 8-SUPPLEMENT TO THE McHENRY PLAINDEALER., OCT. 11, 1974 Aim is to Demonstrate Tune-up Techniques for Repair Men Clinics featuring the latest service techniques to improve gasoline econ­ omy and reduce air pollu­ tion are being presented to auto repairmen through­ out the nation by Cham­ pion Spark Plug Company. According to David L. Walker, Champion Auto­ motive Technical Services Director, both fuel con­ sumption and exhaust emission levels are related to engine condition. Tests by Champion show how tune-up both improves gasoline mileage and re­ duces emissions. Newly-tuned engines save an average 8.2 per cent in fuel compared to engines that haven't been tuned in more than 10,000 miles. In extreme cases, where engines were badly neglected, a tune-up cut fuel consumption by 20 to 35 per ce$t. An average reduction of nearly 50 per cent in hydrocarbon and carbon monoxide emissions, at idle, was recorded after tune-up. In addition, 40 per cent of the cars tested would have failed existing emissions standards be­ fore tune-up. After needed engine adjustments, fail­ ures fell to 3.3 per cent. McHENRY AUTO PARTS, INC, AUTOMOTIVE REPLACEMENT PARTS & SERVICE ITEMS NAP • MUFFLERS & TAIL PIPES • SHOCK ABSORBERS • BATTERIES • BRAKE PARTS • IGNITION PARTS • BRAKE DRUM & DISC TURNING • AUTOMOTIVE PAINT & SUPPLIES 385-8080 From Richmond ft Spring Grove CALL 678-4348 From Wonder Lake CALL 653-9526 3318 W. PEARL McHENRY Three out of every five motorists In this country are wasting gasoline and emitting excessive pollu­ tants because of engine neglect. Such neglect can waste up to six gallons of gasoline per 20-gallon tankful. In addition, car­ bon monoxide and hydro­ carbon emissions can be more than doubled when engines are not running properly. Mr. Walker said engine tune-up can save signi­ ficant amounts of fuel and help clean up the air. He cited a statement by a leading U.S. government energy official which said untuned engines are wast­ ing 140,000 barrels of gaso­ line per day. He also stated that es­ timates based on a Cham­ pion survey indicate 42,- 000,000 U.S. cars are emit­ ting excess pollutants be­ cause they are not in proper tune. Working from a special- ly-equipped mobile train­ ing van, Champion Re­ gional Service Engineers can demonstrate most conditions that cause trouble in automotive ig­ nition systems. Heart of the unit is a multi-fuel, single-cylinder engine equipped with a dyna­ mometer. This unit can simulate almost any high­ way driving situation. The van also houses spe­ cial instrumentation in­ cluding measuring devices for exhaust emissions. Special emphasis is placed on the effects of worn spark plugs, engine adjustments and the need for regularly scheduled maintenance in conserv­ ing gasoline and combat­ ting pollution. Typical engine malfunc­ tions that waste gas and cause excessive carbon monoxide include faulty carburetor, sticking choke, wrong idle setting, dirty air cleaner and related de­ fects. These malfunctions contribute to a poor air/ fuel mixture. High hydrocarbon read­ ings and excessive fuel use generally result from en­ gine misfire and incom­ plete combustion of fuel. Common causes Include weak ignition systems, worn out or fouled spark plugs, improper timing, worn points or condensers, bad wires or poor compres­ sion due to engine in need of mechanical repair. Since they were inaugu­ rated in 1971, more than 3,500 tune-up clinics have been conducted in the U.S. attended by over 150,000. KEEP SPEED DOWN. Tests conducted with a popular American car have indicated a 25 percent im­ provement in fuel econ­ omy when speeds are re­ duced from 70 to 50 miles per hour. Wind resistance increases as car speed in­ creases, and more energy Is thus required to move the car at higher speeds. 4 • * » AVOID "JACK RABBIT" STARTS. Gradual acceler­ ation in city driving can save as much as two miles per gallon compared to rapid acceleration. That's because it takes a lot of extra energy to increase an automobile's accelera­ tion rate. A power valve, located in the carburetor, lets more fuel into the cyl­ inders under full acceler­ ation. In addition, an ac­ celerator pump provides extra fuel to avoid hesi­ tation when the gas pedal is jabbed. • • • Winter driving can be dangerous. Preparation will improve your chances if you become stranded. SEE THE '75 PONTIACS AND BEAT THE INFLATION CRUNCH Here At Overton Pontiac In McHenry, We're Reversing Rising Costs By Actually Reducing Prices On '75 Pontiacs. Just Look At These Inflation-Beating Values! 1975 Lemans I List Price Your Discount Your Price irotop $4580.00 675.00 *3905 1975 Ventura Coupe TkhWIIIMM. |V8 tngiiM, Turbo Hydra matte, whitawall Itiras ttaat bait ad, AM radio, ramota mirror, Idaluxa whaal covars, bodysida moldings power brakaa and staaring, Soft Ray fin, I |H| List Price Your Discount Your Price V8 angina. Turbo Hydramatic, whitawall tirat, AM radio, powar brakas and staaring, f bodysida moldings, daluxa whaal covars, front guards and raar bum par strips. $4098.00 448.00 *3650 SIMILAR SAVINGS ON ANY OTHER 75 PONTIAC YOU ORDER FROM US SOME '74 MODELS STILL AVAILABLE AT COMPARABLE SAViMcc Northern Illinois Finest Selection of 1 Owner Country Cars OVERTON PONTIAC CADILLAC 1112 N. Front Street Mc Henry 815-385-6000