Decatur Daily Democrat, Volume 21, Number 233, Decatur, Adams County, 2 October 1923 — Page 6

How to tell for sure what oil your car needs Important: If you driven

a Hudson Super Six

The Hudson Super Six engine is of the six cylinder, vertical, L-head, water cooled type, of 3, 1 /' bore by 5" stroke. It employs a highly developed splash circulating lubricating system. An elevated exposed oil pump, plunger tvpe, draws oil from the rtservoir in the crankcase and delivers it to the splash trough under No. 1 cylinder, in amounts exactly proportional to the load requirements and controlled by the throttle •,'ening. I'iie oil overflows from No. 1 .[ uisii trough to c ’o. 2, from No. 2 to No. 3, and so on, thus maintaining a level in all troughs, brom the sixth or last splash trough, the oil returns to the reservoir and is recirculated. Lubrication of the entire working mechanism is dependent upon the splash created by dippers provided on the connecting rod caps, which are designed to distribute the oil from the splash troughs to all parts of the engine. All Hudson models prior to 1923 were equipped with cast-iron pistons. ITie 1923 models are, however, fitted w ith aluminum pistons of the constant clearance type. Liston material and design have an important bearing on lubrication. The temperature at which the piston operates affects the formation of carbon deposit and the tendency of the engine to knock. The amount of oil passing into the combustion chamber also affects the formation of carbon deposit and depends to a large extent upon the piston disign. W ith the cast-iron pistons used in the models prior to 1923, the piston temperatures are higher than with the aluminum pistons nowused; therefore an exceptionally

The late model Maxwell engines are designed with force feed lubricating systems in which oil is forced under pressure to the three main bearings. Holes drilled in the crankshaft carry the oil under pressure from the mam bearings to the connecting rod bearings. The other moving parts are lubricated by the oil mist which is created when the oil is forced out through the close clearances at the ends of the connecting rod bearings. The oil circulating pump is of the impeller type and is located at the camshaft level, drawing its supply through a pipe connecting with a strainer in the oil reservoir. Aluminum pistons of the constant

DECATUR MONROE GENEVA BERNE Stepler Bros. Company 1 * & A -G. Briggs & Son Main J Street°Fimng Station Porter & Beavers, Buick Sales & Service Bennis Wolff W. D. Cross Service Station Schug & Mettler next Sriday, we will tell you about the _ - Correct Lubrication of =:r another car. It may be yours. * in the series VAC UUM OIL CO N1 PANT Y 1 All Grades of We Carry|A r Complete Line of • GARGOYLE GARGOYLE Oils and Greases Oils and Greases Porter & Beavers Lee Hardware Co. First & Monroe Streets West Monroe Street ————KUawr- ~mr «■—n 1 ——mb——————————————— - i —1

clesfc burning oil of the proper character should be used to minimize carbon deposit and reduce the tendency of the fuel to knock or "ping.” With the new aluminum pistons of the constant clearance type, the tendency toward carbon formation is reduced. The design is also such that passage of any excess of oil into the combustion chamber is prevented. Consequently a heavier lubricating oil can be employed without inducing detrimental carbon formation. The knocking or “pinging” often experienced with an overheated or badly carbonized engine is caused by the way in which the present day fuels burn. High compression, high temperatures and carbon deposit's tend to increase the knocking tendency. Consequently it is desirable to reduce carbon formation in so far as is possible and this, therefore, has an important bearing on the selection of the correct oil for an engine. It is vitally important that the lubricating oil used in an engine be of such character that it will be circulated by the lubricating system under all conditions. Where an elevated plunger pump is employed and where the oil is distributed by splash, as in the Hudson car, the use in cold weather of an oil which flows freely at low temperatures is imperative. All of the above factors and many others are considered before determining the correct oil for the Hudson car. For models previous to 1923 we advise the use of Gargoyle Mobiloil Arctic the year round. For the 1923 models. Gargoyle Mobiloil “A” should be used in summer and Gargoyle Mobiloil Arctic in winter.

a Maxwell

clearance type are employed. The skirt or bearing part of this type of piston is slotted on one side to pro-. vide for expansion tinder heat and therefore permits the use of close clearances. In addition, horizontal slots are cut through the piston below’ the lower ring to permit the free return of oil from the cylinder walls. W ith the effective control of the oil supply which is secured by this oil return provision on the pistons, the possibility of carbon formation is minimized. In addition, the characteristics of aluminum as a piston material tend to prevent the fuel knock which often occurs when car-

DECATUR DAILY DEMOCR AT, TUESDAY, OCTOBER 2,1923.

bon deposits accumulate. W here natural circulation of the cooling water (thermo-syphon system) is employed as in the Maxwell design, it is desirable to use in w arm weather an oil which is suitable for fairly high operating temperatures. Such an oil will be thoroughly atomized and distributed bv the Maxwell lubricating system under the conditions of summer operation. To assure circulation of the lubricating oil in cold weather, the use of an oil which flows freely at low

The dominant feature of the Franklin car is the use of air cooling. In the 1923 model the air is forced between the cooling fins on each of the six cylinders by means of a blower located at the front of the engine. In previous years the air was sucked over the cooling surfaces by an exhaust fan incorporated in the fly-wheel. Valve-in head construction is employed in all models. The compression carried in the 1923 engine is 70 lbs.; in the earlier models, t>o lbs. Aluminum alloy pistons of the modern slotted and split skirt constant clearance type are used in the 1922 and 1923 models. A multi-split skirt type of aluminum alloy piston having spiral grooving for od distribution was used in the 1919, 1920 and 1921 models. Both types of pistons are fitted with three rings; in the 1921 and subsequent models two of these rings have been specially designed to prevent oil pumping. The lubricating system employed is of the force feed type, feeding oil under pressure to the main and connecting rod bearings. T he oil pump is of the gear type and distributes to each bearing a definite quantity of oil at intervals in proportion to

Don’t say: “Qive me a quart of oil.” Ask for o*3o? u II ii j £ Mobiloil Mobiloil Mobiloil I Mobiloil it fe| | E Arctic [ ”Br | $ I Medium Body, * I

temperatures is necessary because of the elevated location of the oil pump with its long connection to the oil reservoir. To meet correctly these and other important lubrication features ol the Maxwell design, we recommend for the 1922 and 1923 models, the use of Gargoyle Mobiloil “A” in summer and Gargoyle Mobiloil Arctic in winter. For the 1921 and earlier models. Gargoyle Mobiloil Arctic should be used both summer and winter.

a Franklin

the engine speed. Where air cooling is employed, the operating temperatures are normally somewhat higher than with water cooling. Consequently, a heavier bodied lubricant than commonly used w ith water cooling is preferable in order to provide adequate lubrication under all conditions of service. In the Franklin design the possibilities for detrimental carbon deposit are minimized by the very effective oil control. Ihe amount throw n to the cylinders is definitely regulated by the metered pump feed; the constant clearance design of the aluminum pistons permits close clearances and affords a very effective oil return through the slots below T the piston rings. In addition, the ring design is FAIR RETAIL PRICE —3oc A QUART When the dealer sells a quart ot Gargoyle Mobiloil for less than 30c, he does not make his fair, reasonable profit. Lower prices often accofnpany substitution of low quality oil for genuine Gargoyle Mobiloil. Prices are slightly higher in Canada, the Southwest, and the Far West.

such that oil pumping is greatly reduced. Consequently but little oil passes the pistons to form carbon and induce knocking of the fuel. This too is minimized by the rapid heat radiation of the aluminum pistons and the moderate compression of the engine. The use of a force feed lubricating system w ith a gear pump submerged in the oil assures distribution of the oil over the widest range of operat-

an Overland

' T he Overland Four engine is of the vertical, L-head type, water-cooled by natural circulation, no pump being employed (thermo-syphon system'. Unlike conventional designs, the clutch and transmission gears are lubricated by the engine oil except for some cars produced during 1 1, 21 when these parts were separately lubricated. The piston material is cast-iron and each piston is fitted with three rings and six oil return holes under the third ring. A moderate compression of 60 lbs. is carried. Oil is distributed to all the working parts by a splash circulating system. The fly-wheel acts as a pump to carry oil up to a strainer pocket on the right side of the engine. After filtering, the oil flows through tubes in the crankcase to the main bearings under slight pressure and also to the splash troughs. From these, it is distributed to all other engine parts by the splash created by the connecting rod dippers. The clutch, transmission gears and hearings, also the front universal joint, receive their oil supply from the spray thrown by the fly-wheel. When the clutch and transmission gears are lubricated by the engine oil it is desirable, in order to provide the maximum of protection for the

ing conditions. Consequently, lubrication is assured at all temperatures. In analyzing the lubricating requirements of the Franklin engine, these and many Other characteristics of its design have been considered. To obtain the best results, we advise the use of Gargoyle Mobiloil “BB”at all times in the 1922 and 1923 models. For models prior to 1922 use Gargoyle Mobiloil “A” the year round.

gear teeth which often operate under heavy loads, to use as heavy a lubricating oil as can be employed without causing excessive “dragging” of the clutch. The use of oil return holes in the piston under the third piston ring as employed in the Overland design, tends to prevent any excess oil reaching the combustion chambers and consequently reduces the tendency toward carbon formation. Should carbon accumulate, the moderate compression minimizes the tendency of the fuel to knock. . In cold weather, it is necessary, where distribution of the oil is by splash, to use an oil which will flow freely and readily create a fine spray at low temperatures. Otherwise, some of the working parts may not he mbricated. To minimize the clutch drag due to thickening of the oil on the contact surfaces it is desirable to use a more fluid oil in winter weather. To meet these special features of Overland Four design, we advise for the engine the use in summer of Gargoyle Mobiloil “A” and in winter of Gargoyle Mobiloil Arctic. For the transmission of those 1921 models, not lubricated by the engine oil, use Gargoyle Mobiloil “C.” The same grade should he used in the differential of all models.

QE NERAL INSTRUCTIONS It is far more beneficial to the engine if you add a small quantity of oil every day rather than larger quantities at less frequent intervals. Careful car operators, taxi-cab companies. and owners of motor truck fleet* make it a practice to see that the oil is at the proper level every morning before the car goes out. With a 5-gallon can or 15- or 30gallon drum of the correct grade of Gargoyle Mobiloil on hand you will always be ready to give vour car this valuable attention. The crank-case should be entirely drained of oil at least every 1000 miles in summer and everv 500 miles in winter. When draining the oil, the removable screen (if your car has one) should also be cleaned. Draw off the .Id oil w hen the engine is warm, as the oil then flows more freely and tends to wash out any foreign matter. (Never flush the crank-case with kerosene.) Then refill with the correct grade of Gargoyle Mobiloil.