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PAG*: 2*-SUPP&EME VT TO Mr HENRY PLAINDEALKR--fJR4|>VY> OCTXJ3ER -§^976 efrsts W possible, recent studies show Is it possible to double the mileage obtained from a gallon of gasoline? Such expectations may seem out of reach for most motorists, but evidence exists that such fuel sav­ ings are possible. A car owner in Dallas, Tex., brought his vehicle in for an emissions and fuel economy test. When his undermaintained car was examined in "as is" condition, gasoline usage was measured. After the car was completely tuned up, it was retested for fuel economy. A 55 per cent improvement in fuel econ­ omy was realized. Potential high While this saving is hardly typical, it is not in­ conceivable. Add to engine condition other mainte­ nance items and the man­ ner in which the car is driven, and the potential to save fuel is enormous. According to the experts, many factors can cost you at the gasoline pump. Shell Oil Company states that underinflated tires can lose a mile a gallon in fuel economy. A malfunction­ ing choke can cut mileage Tips For The Novice Automechanic By Don B. Wilson, Member, SAE How To Lose Up To 3% Miles Per Gallon Cur* so hadh out of tune that they wasted half of their fuel supply were detected in national fuel economy tests. by 30 per cent as well as lead to engine damage. A clogged air filter can pe­ nalize a motorist 10 per cent in fuel consumption. Shell states. In addition to ignition system deterioration (plugs, points, wiring, etc.), other mechanical factors affect fuel con­ sumption adversely. These include misaligned wheels, maladjusted automatic transmission, brake sys­ tems that "drag," improp­ erly operating cooling sys­ tem (including thermo­ stat) , stuck heat riser valves, malfunctioning fuel pump and worn pis­ ton rings. Car operation important Engines operating at idle get no miles per gallon. So avoid needless idling. Warming up an engine on a cold morning is a waste of time and gas. As soon as the engine is running smoothly, proceed at a moderate speed. Also, when waiting for long periods of time, shut off the engine. If your engine should This past weekend I dis- covered something that is too flood, do not pump the ac­ celerator. Instead, crank the engine steadily until the car starts. In manual transmission cars, get to high gear as soon as possible. First gear uses about 30 per cent more fuel than second, and second uses 15 per cent more fuel than third. Avoid jack rabbit starts A driver who tromps on the gas pedal uses four times as much fuel as the feather-footed motorist. Other fuel-wise maneu­ vers include avoiding sud­ den stops and starts neces­ sitated by following other vehicles too closely; get out of the lane-hopping habit and keep good con­ trol of the car when cor­ nering and climbing hills. And perhaps the most effective gasoline - saving maneuver of all. Drive at sensible speeds. Traveling at 80 m.p.h. is not only against the law. A car at 80 m.p.h. consumes 25 per cent more gas than one going only 50 m.p.h. Shell claims most efficient mile­ age is achieved at about 28 miles per hour. For a limited time, better gas mileage is on sale. And you can buy it in these special Mileage Sale packs of Champion spark plugs. Because tests have shown that fresh sets of Champions can save Wfc've been testing cars like yours ail across the country. And we Ve found that gas mileage improves when worn plugs are replaced with a fresh set of Champions alone. Fill er up good~to keep to oneself! A neighbor who is a pretty savvy mechanic on weekends has for the past month or more been diligently tuning and re-tuning his car. He overhauled the carbu­ retor two weeks ago, all in an effort to improve his miles- per-gallon. Saturday he was at it again. "Don," he said, "I know this (blankety-blank) bus will do better than 11 miles per gallon. When it was new it gave me 14.5. With 69,000 miles on it, it shouldn't be worn out yet, should it?" I replied that I didn't think so. Mine has more than twice that many miles on it and it still runs as sweet and good as it did when new. Maybe even a little better! When he related all he had done and how he had done it, I could find no fault with anything and was at a loss to advise him what to do next. Then, I happened to be be­ hind his wife as we were leav­ ing the subdivision later that afternoon. Besides having a leadfoot, I perceived as she pulled out onto the main road that a large amount of gasoline ran out the rear of the car, dripping off the end of the bumper as she hauled it onto the thoroughfare. "O-ho," I said to myself, "so that's it!" M a k i n g a o n e - e i g h t y , I found my good neighbor grimly cleaning up after his latest onslaught at the gaso­ line bill. "Hey, Bob," I hail­ ed. "When did you last put a new gasoline cap on your gas tank?" r#SC 28*/ He thought a minute and estimated about a couple of years ago when he had lost one on vacation. "Well, 1 think that's where your gasoline is going," I said. "It doesn't fit too well" and 1 recounted what 1 had seen. "Cripes," said Bob. "1 nev­ er even thought of that." Now we will see if a new gasoline cap for a guy who ha­ bitually fills up the top half of his tank is good for 3Vi miles per gallon! \^£uto * Eventually, 60% of all gasoline will be sold through self-service pumps, the Automotive Parts & Acces­ sories Association says. Currently, it's about half that. pp...., . : , ". .. ... . "" ' *• *' . * * * 4 i. * * V « r t t * < t ! « 4 f * 4 t ' * ' * ' 4 4 4 4 r * * ' * .