Page 6 Advertisements Column 3

Evening Post, Volume CVII, Issue 67, 22 March 1929, Page 6

appOteiliC** the qualitxj in Plume that keeps xjour power from T\ jP^T^l/*! T"l f\ CWH\ **From the Latin: ad (ap), meaning JLJ V^ VVJJfi. XX I-Vy V-/ \JL V added to; and potens, meaning powerful J%?.i eppotenlci possessing increased power} pi. said of a gas that, being stable to heat and '*<<**l **fc^ -\O^ high compression, will therefore neUhty -<\**i* && audibly nor silently "knock 7' in-.a high ,^r s^s». r<^V jg.'t compression engine.' y^ o But, what causes power to peter out when taking a hill 'in top'? " The Pull of Gravity!—and the use of a "^^^J^^S. Motor Spirit that can't stand up to the It is. then that the heat and high 1 compression cause Motor Spirits unable 1 to resist these disruptive influences,— lf| lfO|k to knock—audibly and sometimes silently. m^ L^ I%J^^K Result —the petering out of power, !S|lll||yi Motorists using Plume, the appotenic 'm.\ \ vs^^J^ Motor Spirit, find they have a reserve \ \ of power —heat-resistant power, to "^JJL \ i IH^o"i^l countet the pull of gravity and its %\ \ I Plume, the appotenic Motor t t j . n< . sk\ * § SpTul being stable to heat and knock-producing effect. l\/. high compression, burns evenly j i • i %N 3 and steadily when the charge Plume welcomes heat and high COm- \f ignites. Expansion follows this pression .... burns evenly .• . with a \' correctly-timed combustion ma r t . , ■. tit* J ' / i\ steady surge of power that pushes gratifying absence of knocking and of A\ the piston down throughout the petering OUt of pOWer* m \ length of Us power stroke. we, \ . jc_^_ * No motorist can help appreciating that \ little extra lift of power on the hills— \ • the steep hills —where he needs it most! \ Incorrect combustion follows the use of iPF a-Motor Spirit that lacks stability to __. Ms' heat. A chemical change takes place, _ i^c-< S:3s=Cir«^««v, in the charge shortly after the instant j€>^' "*S. Wt^^^ of ignition. Flames rip through the wrt- j^r * Jm/M «■•»■» \«.' ignited portion of the charge, causing ff f-. *sfcjfi[ flwaf I TlL^frjWKu either audible'or silent knocking, and If ]\ e iQ S *A* j) ■WliVX'll* 1F... ■; ; !. '....' its propulsive power is wasted in f pd^ "4 "~" *^" 'W^* iw violent, spasmodic expansion which the f ] r\£' "~^*Sc; w^&>v. 4£&2#Ml* piston cannot absorb. I £ dsH£ MSII W/A The appotenic Motor. Spirit. /* Try a.tank full and / prove it for yourself. ' q y VACUUM OIL COMPANY PTY*. LTD. No.* 5 of a Series; _: "... . ■ ' i ■ T ■ • ":-

the name that stands for QUALITY and loot £r the //r^^^^^=^-_ STYLE name on the /// TJ »-/i~^^% Sole 111 *i££J_ |f There are many kinds of Canvas rubber soled shoes; but only GENUINE J<LEET J-OOT have this name on the 501e... Make sure its a "Fleet ifyou want the best shoes lor all sports.