Page 19 Advertisements Column 3

Dominion, Volume 23, Issue 55, 28 November 1929, Page 19

This machine determines the anti knock value of motor spirits Bi ll i / tH; ' 111H3 / in ' .--I / IjiWiOi wti z It demonstrates I the Mpeaoiiiy ofappotenic PLUME Regular tests with this Midgley Bouncing Pin Knock-testing Set (recognised by fuel engineers as standard equipment for the purpose) confirm the absolute superiority of appotenic Plume. Engineers of high - standing, who have witnessed tests conducted on this machine, acknowledge that the inherent appotenic quality places Plume in a class by itself. Let your car prove to you the extra power output that results from the I j perfect combustion and high anti-knock properties of appotenic Plume. Illp: VACUUM OIL COMPANY PTY. LTD. H PLUME Plume, the appotenic Motor Spirit, being stable to heat and Hwwl wO SLfr™ Sm H high compression, burns evenly . WLdH-K.iP 'qUF JUL and steadily when the charge JS. JL ? ignites. Expansion follows this _ .< correctly timed combustion in a ® flf steady surge of power that pushes /gS -ORthe piston down throughout the /tayf gg Jh jK Ag Sg K length of its power stroke. |F S ) * * appotenic: (ap, added; potens, powerful) added power through perfect knock-proof combustion.