Page 2 Advertisements Column 3

Sun (Christchurch), Volume VI, Issue 1787, 5 November 1919, Page 2

CHEVROLET CARS I Latest Model [DON'T THE MOST UP-TO-DATE CAR in the Light Car Class As Completely Equipped as Cars Costing Double FULL PARTICULARS FROM... purchase a Car until you have inspected the latest CHEVROLET ■"" ■" in The Economy Car with Guaranteed Petrol Mileage HENRY J. RANGER AGENT Christchurch Garage 92-94 Gloucester St.

* r n o K I fi a* ws £ » % te>; In tfie Back o 9 Beyond The bush roads of the Back o'Beyond make the going hard. The drover of today in his motor car generally fears engine trouble more than the blacks. A Willys-Knight sleeve-valve engine will dispel that fear. Quiet in operation, with unobstructed passages for intake and exhaust gases, it requires no adjustment. Other engines wear out; Willyr Knight sleeve-valve improves with use. South Island. Distributors: NX Farmers' Co-op. Assn. of Canterbury Ltd. ChXh. SUB-AGENTS: H. Dix, Rangiora; Cheviot Motor Co., Ltd., Cheviot) United Motor Service, Ltd., Kaikoura. £S

Petrol Economy How it is affected by correct or incorrect body in lubricating oil Have you noticed this: Excessive consumption of lubricating oil is usually accompanied by excessive petrol consumption. The drawings below indicate how this waste occurs. In each cylinder the space between the piston itself and the cylinder walls is usually termed the piston clearance. Each piston is fitted with.? • A "**'' a number of rings which f H, are free to expand and ™ contract and are designed to fill this clearance. If the body of your lubricating oil fails to seal the piston rings two thingg happen: First: The . oil rapidly works up past the piston rings ; i a into the combustion chamber. JHj There it is burned with each explosion. Oil is ' used up rapidly. Excess carbon deposit results. Second: With a poor piston ring seal, the gas mixture works down past the piston rings on each compression stroke. Gas goes to waste. On the power stroke the exploding fuel charge also works down past the piston rings. Petrol again wastes. Power is lost. Gas consumption mounts up. Petrol economy and full power both demand oil which correctly seals the piston rings in your motor. The design and composition of the pistons, the piston clearance and the number, construction and fit df the piston rings, as well as the type of lubricating system employed, vary in different cars. Different cars, therefore, demand oils of different body. In the Lubrication Chart below, which represent^ our professional advice, you will find specified the correct grade of Gargoyle MobilB oils for your car—the oil which ex ' assures a proper piston line m - . , seal. In use you will find that this oil will maintain full compression and prevent the escape of the expanding gases on the power stroke, thus assuring— Petrol Economy. ||l Power Economy. [Oil Economy—and /' Preventing the formation of carbon deposits. If your car is not listed, a copy of our complete Chart of Recommendations will be sent you on request. In buying Gargoyle Mobiloils from your dealer it is safest to purchase in original packages. Look for the red Gargoyle on the container. For information, kindly address any inquiry to our nearest office.

Correct Automobile Lubrication -The four grades of Gargoyle Mobiloils for motor Gargoyle Mobiloil 'A" Gargoyle Mobiloil ' BB" sine lubrication, purified to rei Gargoyle Mobiloil "B" Gargoyle Mobiloil "E" In the Chart below, the letter opposite the car indicates the strode of Gargoyle MobiloUi that should be used. For oxamplo, "A" means Gargoyle Mobiloil "A"; "BB" means Gargoyle Mobiloil "BB," etc. It should be understood that we quote hero only a portion of the Chart of Recommendations, which covers all models of both pleasure and commercial motor vehlcUa. C«V A gradt for tack typt tf mmv Hudson Super Six Humber Hupmobila .. Itala Kelly-Sprlngfleld . Lancia .. .. Maxwell .. ~ Mercedes .. . Metallurgiqua Metz Minerva ~ ~ Napier .. ~ Oakland . .. Overland .. , Pierce A rro Rouged .. Renault .. •• Rco Rolls-Royce .. Rover Russell .. ~ Studebaker . Swift Vauxhall .. Wolseley .. , T r\*\ r> n. f. l Specialist* in the manufacture of high-grade VaCUlim Ull Company rty. Ltd. lubricant* for every clasa of machinery Throughout Australasia