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CHEVROLET 49SN • Tune the engine, if recommended by the schedule in the owner's manual. • Pack the trunk with the spare ti re, a tool set, a jack, a tire iron, flare and a first aid kit. WHEELS Friday, July 19,1985 Section C Be prepared to prevent breakdowns ' ' " • . i •' Imagine whizzing down the road, wdl on your way to savoring a smooth, well-planned summer vaca­ tion. Suddenly the worst happens - your car breaks down. Scenes like this can be prevented with a complete, headlight-to-bumper inspection before a trip, according to the AAA-Chicago Motor Club of Dli- nois and Indiana. After consulting the owner's man­ ual for any special directions, you or your mechanic should follow this AAA-CMC list: • Check tires and spare for wear and make sure they are filled to the proper pressure, as listed in the own­ er's manual or on a sticker in the glove compartment of the driver's door. • Check the level of engine oil and transmission, brake and power-steer- ing fluids. * Check the aim and operation of the headlights, as well as the turn sisals, brake lights, back-up lights and parking lights. • Check the condition of the wind­ shield wipers, and make sure the wiper reservior is filled with washer fluid, * Replace belts that are cracked or frayed, hoses that are brittle, soft, or Trouble in cool engines For every 100 gallons of gasoline you burn, you could get up to 120 gallons of water in your engine. In addition to about 2,000 miles of driving (at 20 miles per gallon), you'll also get three to 10 gallons of unburned gasoline, up to two pounds of soot and a pound of resins and varnishes, one to four pounds of nitrogen and sulphur acids and about two ounces of hydrochloric and hydrobromide acids. If you use leaded gasoline, you can add in an extra six to 10 ounces of insoluble lead salts. Normally these byproducts are not a problem, according to Tech Tips, a newsletter for car owners published by Autotune and distributed free at auto parts stores. When the engine is warm, byproducts can pass out in the exhaust. When the engine is not fully warm - for instance on short trips with lots of starts and stops - the contaminants condense on the cooler cylinder walls, work past the pistons and rings, and sludge thecrankcaseoil. The piston rings are also subjected to excessive carbonizing. Oil passes into the combustion chamber and is burned, while con­ taminants collect in the crankcase and give a false oil level. The next time the engine is allowed to warm up, it may look like it is consuming an excessive amount of oil when really it is burn­ ing off the contaminants. The engine can become so dirty it fails to function properly, but sometimes a dirty engine can be reclaimed. Add large quantities of detergent to the crankcase, and take the vehicle out for about 200 miles of highway driving. Then drain the oil, change the filter, and put the engine through several hours and many miles of mild to severe accelerations and decelerations, essentially breaking it in all over again. To avoid oil sludging, change the oil more frequently. If you know your, vehicle will be subjected to the slow, short trips that cause heavy sludging, change the oil about twice as often as the manufacturer recommends, or at least every 500 miles per quart. Tech Tips newsletter is part of a consumer educational effort by Autotune, a manufacturer of ignition parts, wire and cable, and test equipment to assist do-it-yourself mechanics. For more information about the newsletter or to receive a free subscripts, fftfe Karen Koncevich at Autotune, 175 North Bran- ford Rd., Branford, CT, 06405. PUSH! PULL! GUARANTEE TRADE-IN! Used Cars & Trucks Only OR TOW! SALE Your Car or Truck... No matter what shape it's in Running or not! IS WORTH *1000.00 at Faul Chevrolet this weekend only! FRIDAY & SATURDAY, JULY 19 & 20 1981 CHEVROLET CITATION 4 Door, Automatic, Power Steering, Air Conditioning. *4695 MINUS $3695 '5795 1984 CHEVROLET CAPRICE 9 Passenger Station Wagon, Loaded with extras. Like new. •MM 1983 CHEVROLET CAVAUER 4 Cylinder, Automatic, Power Steering, Lots of extras. 1984 CHEVROLET S-IOPICKUP 4 Speed, Power Steering, Tahoe, Bucket Seats, Stereo. *6795 MINUS HIGHWAY • OVER 50 CARS & TRUCKS TO CHOOSE FROM! * 1 TRADE-IN PER PERSON BARRINGTON. IL • 312/381-2500