ICA SHELL (IGNITION CoNTROL ADDITIVE) Exclusive to Shell SHELL MOTOR SPIRIT now contains ICA (Ignition Control Additive). incorporating TriCresyl Phosphate_ This Shell-discovered additive puts an end to the major causes of With power loss-pre-Ignition and short-circuiting of plugs by deposits in combustion chambers. The Greatest Motor Spirit THE Two-TANKFUL TEST Your first tankful of SHELL with ICA will be mixed with Devetopment ordinary petrol already in the tank. But by the end of the second tankful You will in 32 Years notice your engine running more smoothly and perform- ing better than it ever did Not since the discovery in 1922 of the since the car was new_ properties of tetra ethyl lead has So great an advance been made in fuel for You can start using motor engines. The two greatest barriers to full use of engine power are all the cylinders pre-ignition and spark plug fouling; and 2ll the time both of them are eliminated by SHELL MOToR SPIRIT with ICA: by using Here is the reason why > SHELL with ICA. PRE-IGNiTION 2, SPARK PLUG FOULING: Deposits in the cylinder which are the products Deposits build uP on spark Plugs 0f combustion become red hot and ignite the and may reach the stage at which fuel-air mixture before the timed spark: This they act as conductors and pre-ignition results in rough running and engine short-circuit the spark: This noise. It also causes what engineers call wild causes irregular running; wastes (not co be confused with pinking" or fuel, and robs You 0f Power. Bimockinot ") In the long run it can damage Your engine: SHELL with ICA Insulates these ShelL with ICA fireproofs these deposits and deposits and eliminates prevents Pre-ignition: short-circuiting: Smoother runhing means less engine damage. Better performanoe can mean more mileage. Start the two-tankful test right away and FEEL ThE DIFFERENCE New Zealand Patents Numbers Remember : ICA, incorporating TriCresyl Phosphate, is exclusive to ShELL' 104806 and 1/0459 applied for
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New Zealand Listener, Volume 30, Issue 756, 15 January 1954, Page 13
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323Page 13 Advertisement 2 New Zealand Listener, Volume 30, Issue 756, 15 January 1954, Page 13
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Copyright in the work University Entrance by Janet Frame (credited as J.F., 22 March 1946, page 18), is owned by the Janet Frame Literary Trust. The National Library has been granted permission to digitise this article and make it available online as part of this digitised version of the New Zealand Listener. You can search, browse, and print this article for research and personal study only. Permission must be obtained from the Janet Frame Literary Trust for any other use.
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