Evening Star Newspaper, April 24, 1921, Page 57

-~ = » THE SUNDAY STAR, WASHINGTON, D. C., APRIL 24, 1921—PART 3.° 5 ‘] cars are subjected to & wide differ- 2 oo = ITAL AIDS FOR MOTORISTS $h5 i Tara on the part of operators: | CAREYING SPARE TTRES. Stmnnmnm i . and de- The use of the correct ol will al.| Itis & good rule not to carry 2 spare| = i tormine the S ways minimize wear, e rate of tire too long. Interchange it with the| Z We Insur < S e e e IN CHOOSING OF PROPER OILS| 5, B it Mt & o s et it * Everything Insursble Davis 3 or manufactul [3 less - | should be carried covered. When left/ = —Boss - .-n,"—!.f"" u;-phou.l P ¥ lone of servios toojlong its enduranc. H iy ' y low 3. Variations in piston clearance |and longevity are seriously handicap :rdv-hli-n-t offers areat- “Speedometer“ Method Branded as Un-!zng pisten ring ats are not the only | ped —Miiler News Service EUIMIIMIRIRRIS I value thaa any comparabl = determining factors in the choice o > e \Vis—ri i roper oils. O i temperatures. oo See the Davis—ride in The Special F Mesebenild SiF Racibution and the chatacter of | G00D ROADS SEEN VITAL. | Di . l t o t il ation . 'y ch i safe—Four Mistaken Ideas ot o el b Tormatn | vaca prnch 1 tene 1t and demand iscretion Says—Insure good roads.” says Sales Manager Or- ville D. Coppock of the Commerce | Motor Car Company, Detroit. “Noth- ing is so vital to the transportation system of our country and the future of the automotive industry as good 4. No oil, regardless of body. can seal excessively worn piston rings against oil pumping. The recommendation of a heavier grade of oil after a short period of engine service is an admission that the oil originally recommended was ] R | 5 ‘ L L T LT LT Sport Car $2150 At the Factory, Flus War Tax Rine Motor Sales Co. : Correctéd 2002-2004 K St. N.W. Phone West 2487 No amount of precaution can eliminate autoing Tis But insurance will protect from loss. Go the limit—insuring against accident to your car and ,.. One of the most common “mistaken ideas” about oils is the theory that rate of wear is very gradual and de- pendent upon the degree to which the incorrect. > SEs e ol w1 e ;:_gc:‘!:d ;orrlt;clly and eMciently lu- T ot ipillia thelone kwhioh [ your damage to others’ property—and liability, d nally, the continued and| jeets the conditions of operating = theit and fire. Being completely covered means engines, says the Gargoyle. This mistaken idea has been called oils. In other words, all that is nec- essary to determine what grade of oil to use is to look at the speedometer on your car, and after certain periods of mileage. zhange to the next heavier grade of oil. For example, many car owners be- lieve that a Jight-bodied oil will cor- rectly lubricate their cars for the first 1,000 miles or so, and that after that they will need a medium-bodied oil. Then, after they have operated their car for fifteen or tweniy thou- sand miles, they need a heavy-bodied oil. The average man, with no knowl- edge of automobile construction and design, ‘argues that this change in the body of the oil used is necessary “because the cylinder walls and pis- accumulating wear causes pounding of the rings in their grooves and oil consumption rapidly increases. Ex- cessive wear should be cut short and corrected mechanically by repairs or replacements of the worn parts. ‘Three More Factors. Mistaken idea No. 3, that piston clearances and piston ring fits alone determine the choice of the proper oil. While it is absolutely necessary that the correct oil be one of ample body and proper character to seal the pis- ton rings against gas leakage under all operating conditions. there are three other equally important fac- tors which must be considered in se- lecting the correct oil for any auto- motive engine. The first is the operating tempera- ture. This is influenced by the type of service, the type of cooling sys- tem employed, the cylinder dimen- temperatures and oil distribution; which provides a proper piston ring seal and in_service leaves a mini- mum of carbon deposit. By its use wear is greatly minimized. " Such an oil will be of a character to provide efficient lubrication, under all oper- ating conditions, throughout the life of the car. When accumulated wear becomes excessive proper repairs alone will overcome its effects. —_————— TRADE NOTES. The District Haynes Corporation, a new distributor on automobile row, handling Haynes cars exclusively. made its formal debut in an attrac- tive salesroom at 1022 Connecticut avenue northwest, this week. While the concern is a new one, the offi- cials and executives are practical and experienced automobile men, several of whom have been connected with the Haynes factory and dealer or- to enjoy your car without reservation. J. B. Kendall Co, 485 Missouri Ave. NW. Tel. Maia 484 Let us attend to this important matter for you —for two reasons. We'll be thorough—and if there’s a loss you and we will do the adjusting— and you'll get our check promptly for the agreed amount. In other words—we are your agents in this matter. T O LT T T T Headquarters for Auatomobile Springs Mr. Ruoff, manager of our Insurance Dept., will be glad to go into details with you. Call him —Main 4340. Boss & Phelps Auato Top Coverings Aatomobile Tools Iron, Steel and Heavy Hardware In the Spring— ayoungman’s—old man’s —EVERYMAN'’S fancy ton rings become worn. sions, valve arran, v e , angement and by the at . Shimadl Four Mistaken Ideas. details of design. LI 1 1406 H Street Main 4340 t“r,r’StOthou,ghtSOf s It 1s found that it is based upon| Second is the ability of the lubricat- ,,,,\P,.‘l‘l‘fl:n:‘;{t,{";‘;,' g am Cap Screws and = toring. April — Spring- four mistaken ideas, which are asiing system to handle oils of different |sented the Haynes as district man- = 3 s ollows: s ager for the east central zone. H. = time, the best time for Mistaken idea No. 1. That wear takes s well known that certain type I. T. Cunningham, more familiarly SO e N by his mili- major.” is sales man- Young is president. 11 lend themselves bet-|known in Washington tary title of ager. o place at substantially the same rate|{of systems w in all makes and types of engines un- |ter to the distribution of light-bodied der all conditions of servic oils. while others work best with oils This idea entirely ignores the fact|of medium or heavy body. It is also motoring and THE time to take advantage of our K. D. Windshield low ““Chain Store” prices. that there are wide variations in the materials used for cylinders, pistons and piston rings in different makes of cars. There are also differences in de- sign, proportions and manufacturing true that in some cases, due to de- tails of the lubricating system, the employment of heavy-bodied oils may prove disastrous, due to lack of dis- t_rlbulion of the oil under some operat- ing conditions. i Stillson pipe wrench. processes. This theory also assumes Swivel i ei The third . 10-in. fo that all owners will accord their cars he third factor is carbon deposit. ® Bracket, water - drop forged steel. RalpuThelcATE. Due to characteristics of desigi proof, dust proof, Polished shank, frame It must be evident that varla{ionslz‘i’x’:"ni_‘flfllfl“! will not_burn cleanl convenient han- and jaws. in any of these factors' will largely | o of heavy body. The result i i factors’ Swill | excessive carbon deposit, which does dle. Mirror back affect the rate with which Wear Wi ' inot form when lighter oils are used. for day driving. Reg. price $2.50 take place and consequently Will|myis congition is amgravated when ® % make the mileage basis for deter-|peavier oils are used to overcome Reg. price $5. Our price mining the proper lubricant very in-| wear. accurate. In other words, there are three Our price $1.75 Tt e ovell known that the rate of | very important factors which. in $3.50 wear of aluminum and cast iron pis-|addition to piston and piston Tring “cor ora . tons varies widely and that the c,-‘r‘e‘fler-r:v!m:fi 2fect the selection of the = x e Ml ing" and finish- e ch may render in- Five-inch Fender PyrencFire Extinguisher f::'i';fi?. ML :gf,”;;‘;g“ ‘materially [ advisable the use of oils of heavy Mirror, adjustable (with bracket) reduces affects the life of these parts. Some [PORYL o 0 o hat th auto insurance 15% a owners will take no care whatever | 3oy Hoe O e engines that shank. 23 L of their engines and may drive at)page or ooclcd, Ol I o e come Reg. price §2.50 year. high speeds. Others will Blve Droper joll pumping. ;e attenti t jcation an! Our price Reg. price $10.00 T s Heavier Bodled Olls Used. For these reasons it must be plainly | 0il pumping is the term usuall $1.75 \ Our price $8.50 ¢vident that any uyuten;ufi:m!;“";f_gfnmicd wh»nf Sn chgine e s o 0 determine e proper arge quantities of il. 1 OTHER SPECIALS Reg.Price OurPrics e e e e mileage basis:cases it results in spark PIUE TouL. Caqchylhder Head Gaskets (Ford) « « « . . § .50 §$ 40 alone must yield results which 8;9 ing and almost invariably in carbon WhisCupgresse (Slb.cans) . . . . « . . . . 150 140 wholly inconsistent and not to be|deposits. Tt e Bt RS L o h T ‘50 30 relied upon. wivhen oil pumping occurs in cars il issi Another Wrong Impress have previously worked sat- WLISC Trm‘:uén (5Ib.cans) . . . . . 150 130 MDA e N That from |isfactorily —heavier-bodied oils are Blowout Patches, U. A.S.4%5” . . . . . ... .55 .40 Dlistaken iden N0, i ew wear Is| Often employed to reduce it. ® Brake Shoes, Ever Safe, non-adjustable (pair) . . . 225 175 Thitormly progressive in proportion |, It is a fact that heavier-bodied olls = ~ 5 ~bodied oils, but i Mhs:o:kAb-orbas.to\mng (set of four) 12.00 9.00 When engines are new ¢he smooth- | pIae TENCEOLIER, o8, bul this re 1N C Lexington is the 1920 Pikes ‘These are Auto tubes, blowout —Standard Ask for copy of United Auto Stores News UNITED AUTO STORES © 1502 14th St. NW. @ few of our complete stock of We eell Standard Make tires, tches and all other accessorics at less than Standard Prices. O R PO R ATELCD Week_ Why don’t yom arrange for a demonstration found mose inspired expression. For afl of the keen distinction of the Thorobred, every con- tribuling clement is in extreme good taste, Most exteptional s the low focl-coovamption, becamse for economical power the Lexi-gasifier and Moore Maltiple Exhaust System bave yet to e successfully imitated. For these and many more vital features of greater worth the Lexington plan of ten allied factorics is sespamsible. Ouly by persoust in- spection-can yoo gain 2 fell senseof bowanch mosethe Thosobred-offerswoo. Come-isstoday. ness of the metallic surfaces coming in contact with one another depends on the manufacturing methods em- ployed in the finishing of the sur- faces. The ideal condition would be the lapping-in, or finishing, of these sur- faces to give them a high polish, completely eliminating all roughness left by the tools used by the manu- facturer in production. The methods usually employed in the quantity production of automobile engines do not permit of highly fin- ished surfaces being secured. Like- wise, the time required for produc- ing such highly polished and finished surfaces would necessitate high costs in production and eventually mean higher cost to the purchaser of the car. Examination by enflwln‘ ex- perts of new cars of many different makes has conclusively proved that when turned out by the are run-in ?‘n!y '(g a i degree; consequently, en :l;:l!‘;dr is E-m(ved by the purchaser the metallic surfaces are still some- ‘what rou Be:l\ne‘z‘? this it is necessary for the purchaser of the car to operate his engine at moderate speeds and loads for at least 1,000 miles before the rubbing surfaces wear to pro- duce running fits. During this pe- riod, however, it i8 not necessary to use a lighter oil than is correct for the car when run-in. As the parts wear in, there is a slight increase in the clesrances to the running fits required. Once these polished bearing sur- faces and running clearances are pro- duced as a result of engine use, very little wear will occur for many thou- sands of miles thereafter, if proper lubrication is provided. It must, therefore, be true that if wear takes place to any appreciable extent, such wear is directly due to poor lubri- cating value of the oil used or, in rare instances, to poor design or ma- “w"y‘.lafi wear has progressed to such an extent that the piston rings pos- sess perceptible up and down move- ment, the pounding action of the rings on the sides of their grooves tends to increase the enlargement at a very rapid rate. This is the point at which trouble from oil pumping usu- ally commences. Under this condition the clearances have become so large that no oil, regardiess of body or character, will prevent oil pumping or overcome blow-by. To summarise the progress of wear we have, first, the running-in during which wear is slight but rapid; next, the period in which the rapld; Mo CHAS. E. MILLER, Inc F iy Miller Bros.’ House. 812 14th St 4 Doors North of i St Willard Bradburn Bat'y & EL Service 6i6 Pa. Ave. S.E. Modern Auto Supply Co. 917 H St. NE. Tmylor-Etfingr Bat'y Service o A.:VI, l;:lu St. N.W. The Jobn inel e dokn A inehern ol Smith's Bat'y & EL 2119 18tk St 1621-23 L St. N.W. tion of wear. Hence, if a change is made to a heavier oil in a worn engine this oil will also be consumed in proportionately exeessive amounts. _ Consequently, when such oils work into the combustion chambers in ex- cessive amounts they are not com- letely burned, but remain to form arge “quantities of carbon. Therefore, {f the engine design were such ‘that a heavy-bodied oil Zould not be used when the engine was_in good condition, due to ex- cessive carbon deposit, this oil would be still more unsatisfactory when wear permitted it to pass the pis- tons in excess. Any other factors of design mak- ing unsuitable the use of a heavy oil in a new car would continue to exist regardless of wear and render its use inadvisable. We find that the determinatiog-of suitable lubricants for automobile or motor truck engines on an arbitrary mileage basis is unsound because . e of wear is not constant for all engines. It varies with the esign, material, manufacturing fin- ish. and the care given them in serv- fce. It is chiefly controlled by the ‘value of the lubricants used. 2. Wear is not measurable in terms of mileage operation. The initial finish of the working parts is a factor ‘which varies widely, especially in large quantity production; and all “America’s First Car’’ 1324 14th Street N.W. Wholesale Phone Exclusively Main 3564 Open 8 AM. to 6 P.M. “America’s First Car’’ Thank You for Your Reception of The Latest ‘ AYNESAutomobiles Thank you for the notable success of our Opening, the many compliments on the beauty and quality of Haynes Cars, and the attractiveness of our new showroom. number of orders received is the most indicative expression that could be given. We congratulate those who have pur- chased, knowing that the Haynes represents the utmost in The large Service Stations e LAONm L utility, beauty and value. A Complete Line of Haynes Models on Display Open Evenings ISTRICT HAYNES CORPORATION (Distributors) 1022 Connecticut Avenue N. W. Main 858-859 ; Washington, D. C. “You’ll See the New Haynes Everywhere”