Page 16 Advertisements Column 3

Press, Volume XCVII, Issue 28552, 3 April 1958, Page 16

today Through the years, Shell has matched strides with every 1 step forward in engine design, producing the better quality unxA/ I r a fuels needed to give motorists the greatest possible gain in HOW I.C.A. performance. Equally important, Shell led the way with ENSURES FULL SMOOTH POWER 1.C.A., a triumph of scientific research, an exclusive Ignition Control Additive protected by world-wide j patents which overcomes a major cause of power loss in Wjw M cars—faulty ignition due to engine deposits in combustion chambers and on spark plugs. This problem affects every motorist, whatever the age of his car. I.C.A. is therefore essential for bringing out the best performance of today’s engines. It is going to be even more essential in the cars of tomorrow. There are two reasons for this : (i) Engines of greater power output and : improved economy will have higher compression ratios which accentuate the power-stealing deposit-problems. (2) Road traffic conditions are becoming steadily worse. This results in prolonged low speed, low engine output "Combustion chamber of “Combustion chamber of driving—the worst possible conditions for spark plug foul- engine not using 1.C.A.” engine using I.C.A.** ing and build-up of engine deposits. I.C.A. neutralises A glowing spot of deposit Ignition takes place cor* these deposits so that they cannot interfere with the correct on the surface of the rectly—in the right place firing of the fuel/air mixture. combustion chamber has at the right time. I.C.A. fired the mixture before has fire-proofed engine Re-vitalise your engine enjoy the power “bonus" which P l '.. s P ark » upsetting deposits preventing them I C.L offers at no extra cost. Fill up with Shell with /.v.A. today* ing fuel and power. smoothness. cars run better on I SHELLj| with I.C.A