The Birmingham age-herald., 1924-04-13
CARBON DEPOSITS
 CUT TO MINIMUM
Peerless Onwers Find That Cars
 Run 10000 Miles

Automobile owners are always keen ly interested in keeping the cost ot
 maintaining their cars as low as possi- ble. At the same time they like to en- joy its continuous use without frequent trips to the service station or repair shop.
 One item of upkeep expense and an- noyance to which automotive engineers have devoted considerable study, is the elimination of as much carbon forma- tion from the cylinders as possible. Many improvements have recently been made in this regard.
 An instance of these improvements is an analysis recently made by Peerless officials of figures supplied them by owners of the Peerless eight combined
 with innumerable tests that have been made by the company itself.
 Owners of the Peerless eight find that their cars will run on an average of more than 10000 miles before the re- moval of carbon becomes necessary, ac- cording to dozens of letters they have written. The Peerless Motor Car com pany itself in a series of tests, has found that these figures are correct.
 Peerless officials point out that not only is carbon unusually easy to re- move from the pistons of their cars, when it does become necessary, but that it is also simpler and less costly to do it when the occasion arises than for almost any other car made.
 There is no secret formula to this performance any more than there is any secret formula responsible for the other singular performances that our cars have given to their owners" F. W. Slack, chief engineer of the Peer less Motor Car company, recently said.
 Six different manufacturing factors are primarily responsible for the lack of carbon formation in the Peerless. These are the care exercised in boring the cylinder block making the pistons and piston rings, and the closeness with which they fit; the best possible combustion of gasoline at all speeds and under all climatic conditions; the Peerless firing dome: the carburetor cut-in and the proper distribution of oil to the cylinder walls.
 All stages of manufacture of our cylinder block, pistons and piston rings are carried out to a degree attempted by few other motor car companies. In- spection after inspection is given each of these units as their manufacture progresses. However, such exaetness of fit would not mean much without the right sort of carburetor. We have developed recently a 'cut-in' which adds additional air to the mixture above 40 miles an hour, and improvements which has caused wide favorable com ment. ola
 "The flexibility of the motor plays it's part. The Peerless eight is very powerful car, one which can be driven mile after mile at high speeds and yield up equally as good performance as though the car were travelling at only an ordinary traffic rate.
 Several safeguards relative to oil supply to the cylinders have been taken to insure the proper amount reaching them at all times. Too much oil is nearly as bad as too little, and our engineers have been fortunate in: de- signing a system which has given splen- did results.
 Scarcely anyone would say that any of these features is unique. But in the problem of how to CO., ordinate them into a series of units that functions as one, believe we have found the answer to improve perform ance and elimination of what has come to be source of great annoyance