KEEP IT CLEAN

[Music] more and better tanks and self-propelled artillery more and harder hitting guns of every type and size more ability to speedily repair or construct airfields and other vital military installations more means of transporting whole divisions of better armed better trained men these were the weapons of war that played so vital apart in our complete overwhelming victory in world war ii and behind the success of all our military might making it possible for every piece of equipment to strike its winning blows against our enemies the internal combustion engine in a wide variety of types designs and sizes engines that had to keep delivering their power under every conceivable kind of operating condition the steady dependable performance of American gasoline and diesel engines was one of the outstanding achievements of the war in their never-ending victorious thrusts our military equipment had to keep going at temperatures far above and below zero over good roads and bad or no roads at all under the toughest battle conditions imaginable they had to be ready to roll and keep rolling without let-up once the command was given there was no stopping for repairs any unit that failed was left by the wayside for replacement by a new unit and mighty few failed because of mechanical troubles that kind of performance would have been impossible without motor oil that could stand up under any kind of punishment without one universal oil for all types of service both light and heavy duty thousands of barrels of oil for this job were supplied by saucony vacuum oil that was tested tortured proved on the battlefields of world or to pioneered by Saucony vacuum before the war this type of motor oil even then proved so superior that after Pearl Harbor every gallon made was drafted for service in America's military vehicles and in essential trucks and buses here at home on the production front during the war years the revolutionary refining methods that produced this great oil were still further improved so that the final product met the severe operating requirements of modern more powerful engines better by far than ever before now it's home from the wars available to civilian America ready to provide the same kind of unequaled engine protection at home as it did on the world's recent battle fronts a brief review of the demands any engine makes of its lubricant provides the best understanding of the way this amazing new Mobil Oil performs the first thing needed is fast turnover to permit quick easy starting but with no sacrifice in protection against where oil must also be free-flowing must get around fast to all working parts to provide protection as soon as the engine starts it must be double range to to meet both high and low temperature needs light enough for easy turnover and rapid circulation when the engine is cold yet heavy enough to furnish maximum protection at high temperatures and speeds the next protection requirement is the ability of the oil to provide a slippery lubricated surface even when there is no real liquid oil film present that calls for marked friction and wear reducing properties in the lubricant used there is still another protection requirement of the modern engine one that has grown more and more serious through the years as engines have steadily shrunk smaller and smaller although delivering more and more power that requirement is increased protection against engine deposits for the full story on this problem of engine deposits let's listen to the chief automotive engineer of saucony vacuum mr. George a round we're here today to talk about another big improvement in mobile i'll a step forward just as important just as great as the Clearasil process introduced in 1935 ever since this company first began to make lubricants and that's a good many years ago we've had just one idea in mind not to make them just good enough to meet service requirements but to make them better with a large margin to spare that was true of the oil that we made for george Selden's first engine the oil have made possible the success of the earlier automobiles and it's been true ever since when an engine leaves the factory every part is new clean and free to work easily for long continued efficient operation the engine parts should stay clean but an inspection of many engines that have seen service shows that the working parts in fact the whole interior of the engine gradually become coated with deposits where does engine dirt come from well a small amount of road dust and dirt get into the engine but unless dust conditions are bad they do not increase deposits a great deal most of the dirt comes from the lubricating oil and from the fuel when it is not burned efficiently deposits from the fuel consists of sort which is finely divided carbon lead compounds and small amounts of gummy materials along with these there is a large amount of water which is always formed when gasoline burns most of the water goes out the exhaust in the form of steam we can see it coming out of the tailpipe on a cold morning some of the other materials adhere to the oil film on the cylinder walls and I swept down into the crankcase some adhere to the post tops under the insides of the combustion chambers along with traces of oil there they build up what we call carbon deposits a small amount of water either as liquid or steam may collect and aggravate sludge deposits in the crankcase deposits coming from the lubricating oil are formed by oxidation oil plus air equals lacquer gum and sludge the chemical action on the oil by oxygen from the air this action is like that of the rusting of iron when iron or steel combines with oxygen from the air they deposit rust is formed and the more heat the more rust if the metal even in the form of steel chips or steel wool is dry it resists rust for a time but let it get wet and it turns to rust very quickly water speeds up rusting much the same action takes place in the drying of paint we had drier to paint to make it hard and quickly which is the same kind of action that water promotes in rusting iron when exposed to the air paint first becomes gummy you know that's the time most people have to find out for themselves if it's still wet the action is the same with varnish or lacquer so some engine deposits a call lacquer if we want to do a good paint job we wait for a warm day and then apply the paint in a thin coat it'll dry quickly to a hard surface a thick coat applied in a cold day dry slowly oxidation is swell with paint but not with engine oil exactly the same conditions which promote the rusting of steel or the drying of paint also promote the oxidation of oil high temperatures long time use beating the oil up into a fine mist so that air can mix with it intimately spreading it thin in other words the metals of the engine helps speed up oil oxidation they act like water on and dryer in painting by far the most important factor in oil oxidation is temperature if we heat iron hot enough it will burn and the same thing is true of oil raising the temperature of oil 20 degrees just doubles the speed with which it oxidizes and this doubling process keeps right on for every 20 degrees increase in temperature that's why modern hot running engines punish oil a lot more than older designs but modern engines also make it tough for oil in other ways engine cranking don't hold much oil and very little makeup oil is put in between drains the oil is used over and over again and you know how long some people have tried to make it last that factor of time again with clothes fitted bearings with high speeds and with large pumps that force the oil through the bearings many times a minute it is spread out thinner atomized more finely mixed more thoroughly with air than in the past well may oxidized to form gummy deposits lacquer or varnish like material but coats pistons vowels and sometimes bearings ruining engine performance it may form soft black sludge and hard granular particles by coffee grounds but collect in the oil reservoir on oil screens and in other places inside the engine interfering with oil circulation carbon deposits form on piston heads behind rings and throughout the combustion chamber causing knocking rings become clogged and inactive boosting blow-by and oil consumption or L may thickened increase in body until it is several times as thick as it was originally that causes hard starting cuts down power and wastes fuel it may develop acids which shorten bearing life several in fact all of these conditions can develop an any engine depending upon operating additions and the kind of oil used well gets oxidation punishment both upstairs and downstairs in the cylinders as well as in the crankcase some oil gets by the rings into the combustion chamber part of the piston heads some sticks to the some of the walls if it didn't the piston rings wouldn't be lubricated some of the soil mixes with soot and lead compound and stews down to form what we call carbon deposits some is burned and goes out the exhaust the oil on the cylinder walls is exposed to the heat of the combustion chamber and the action of the air in the fuel mixture this thin film is subjected to severe oxidation and some of it gets back into the crankcase due to blow by in the pumping action of the Rings it carries with it soot and gummy materials anything resulting from incomplete combustion of the fuel if all of these materials stay dissolved in the oil salt or sugar dissolved in water they would be less troublesome but instead they gradually separate settle or are thrown out of the oil to form engine dirt or deposits which collect all through the engine so let's remove some of this material particularly dust and metal particles but are not large or efficient enough to prevent all engine deposits naturally the smaller the amount of deposit the better an engine will run and the longer it will deliver top performance but as long as fuel is burned to run an engine some deposits from it will be formed as long as oil is used it will always be subject to some oxidation if temperatures are high enough it can always be made to burn which is Mellie complete oxidation when it comes to reducing deposits that are formed from the oil itself Ciccone vacuum has already pioneered the greatest advances ever made solvent refining by the Clearasil process followed by solvent dewaxing and filtering using carefully selected Croods vacuum distill these refining processes gave finished oils from which the unstable easily oxidized were more completely removed than ever before these processes are being used today to make mobile I'll the next step toward cleaner engines is to increase the stability of the oil itself so that despite the severity of modern engine requirements it will more effectively resist the chemical changes which are speeded up by high temperatures and the presence of hot metal surfaces and that's the first great improvement that has now been made in mobile oil its ability to resist oxidation in hot running engines has been greatly increased this new development means that those chemical reactions which cause oil to thicken acids to develop gum and sludge to form those reactions have been so greatly slowed down but even under the worst operating conditions the oil undergoes little change in other words it retains its original performance characteristics to an unusually high degree in service remember we said that deposits come from both the fuel and the lubricating oil because no engine always burns its fuel perfectly because temperatures always can go high enough to cause some oil oxidation there will always be some deposit forming material getting into the oil as you can see here the only way to prevent them from causing trouble eventually is to keep them suspended in the oil in such finely divided form that they are harmless as if dissolved we might say so held that they do not settle on engine parts in developing methods not only for greatly increasing oil stability but also for doing this new unique job keeping potential deposits harmlessly held in the oil Ciccone vacuum pioneers a new and revolutionary advance in oil for motorcars Mobil I'll now not only gives better lubrication than ever before but it also keeps the engine clean Mobil I'll now actually hole's engine dirt within itself much is a soap and water mixture holes the dirt moves from your hands shut from the fuel and lacquer forming and sludge forming materials are kept in such finely divided form but they do not settle out of the oil this is a new principle in engine lubrication when the time comes to drain the oil engine dirt is carried off with the drainings and the fresh oil continues to keep the engine clean today thanks to its new outstanding improvements what while is more than ever before the world's leading motor oil Thank You mr. round and now for America's war weary cars comes new assurance of safer engine protection better engine performance thanks to the amazing new mobile oil tears positive proof of its ability to make vital working parts cleaner and to prevent damage to bearing surfaces some 50 cars ranging from 1937 to 1941 models and with mileages up to 75,000 were selected for testing these cars included practically every popular make were all privately owned not company cars and all had been driven steadily under wartime conditions first all the engines were torn down carefully inspected and photographed then reassembled without cleaning and without changing any adjustment or replacing any parts then they were refilled with the new Mobil Oil and driven from 1,000 to 2,000 miles under wartime regulations again they were taken down inspected and photographed here is a pair of Pistons from one of the cars photographed before the test and here are the same Pistons 2,000 miles later notice how the old lacquer deposits are being removed and even after this short mileage the oil drain grooves are beginning to clean up these valves photograph before the test are from the same engine after the test period on the new Mobil Oil the deposits on the stems have been almost entirely cleaned off this means more efficient operation less chance for a valve sticking and power waste here's a set of Babbitt bearings before the test and after note how the lacquer deposits have been cleaned off reducing friction and permitting better lubrication along with this cleaning action there has been no tendency to pick up and circulate material which would damage the bearings the results of the test on these cars plainly shows that engine conditions were definitely improved even in a short period of driving on the new Mobil Oil a test conducted under heavy-duty service conditions shows equally excellent results under these conditions main bearings such as copper led types are susceptible to damage by corrosion and deposit accumulations if the oil used is not sufficiently stable and heat-resistant this set of bearings run on a so-called heavy-duty oil plainly shows lead discoloration heavy deposits and severe corrosion these bearings were run on the new Mobil Oil under exactly the same heavy-duty service conditions as the others they are perfectly clean and show not the slightest trace of corrosion for successful diesel engine operation piston and ring cleanliness is all-important pre-war Mobil Oil was a fine diesel engine oil as you can see by these Pistons shown after the so-called 35 hour screen test but look at this set run under identical conditions on the post-war new Mobil Oil however its real value is best shown by the caterpillar 480 our tests the new mobile oil keeps Pistons really clean it provides better protection for today's passenger cars all older and with far more mileage than ever before better protection for all the different types and sizes of trucks that form an essential part of our national transportation better protection for hard-working tractors and many other types of farm machine engines that must still win the big battle for food better protection performance and economy of operation for both carburetor type engines and diesel engines regardless of whether they are used for light or heavy duty service today's new mobile oil permits fast turnover for a quick start circulates promptly so that all working parts get oil immediately on starting a Ford's complete protection against wear scuffing corrosion keeps engines clean minimizing gum sludge and carbon provides maximum efficiency low oil and fuel consumption no forming minimum repair expense today's new Mobil Oil finest ever made by Saucony vacuum is unmatched for any service heavy or light in gasoline or diesel engines it provides a new high standard of engine protection and performance marks a new milestone in the long leadership of the greatest brand name in petroleum [Music] [Applause] [Music]