Engine Walls have to be cleaned of harmful dirt , sludge and other "caked-up" deposits that cause problems ! Once System "48-Plus" ! is added to your engine - its first function is to help cleanse the walls of these impurities - so that the solid film lubricants (which are the vital component of this formula) can "cling" to bare metals . This is accomplished through a "surfacting" method which helps dissolve crusted adhesions that are building up within the engine walls !     Hydraulic Valve Lifters must be able to function within the correct tolerances - or engine function can be seriously impaired . Contact with even minute particles , can cause abrasive situations which lead to excessive pressures of heat and wear !     Upon application , System "48-Plus" departs from the oil and "searches" for "Hot Spots" (which are areas where undesirable contacts are being made through one metal surface touching upon another) .     System "48-Plus" then lodges itself between these abnormal abutments - and acts as a "buffer" to offer extraordinary super-lubrication that cannot be derived from common motor oils !     Pistons must be "advance lubricated" past the point of what common oil has to offer .     Extra protection is necessary to help avoid or alleviate the "rasping", "grating" and "choking" that can occur when internal metal parts make contact with each other !     Here, once again, we find that System "48-Plus" works itself in between "problem areas" - and stays there - so that continuing protection and easing of the frictional problems are not affected in any way by oil changes .     Since System "48-Plus" has departed from the oil - and found areas where its "sticking" action is necessary - it bears no relationship to oil whatsoever !     The bearings have to glide smoothly and easily - or the engine will have to work that much harder in order to achieve just the normal performance your engine should be capable of . This strain can not only have parts wear out prematurely - but the added stress can also lead to unexpected breakdowns and repairs ! That's what System "48-Plus" is all about !     It enables your engine to deliver the solid performance and power it is capable of , once the crushing strangulation of excessive friction have been eased . This is why you'll not only enjoy more security against malfunctions and replacements... but you'll also experience the savings of money on gas that was being used up unnecessarily - and be thrilled by the fact that System "48-Plus" is staying in your engine , to make sure that you'll keep on benefiting from its continued performance to help save your engine - your car - and your dollars !