The 70's saw Aussie Max Roberts take charge of Castrol worldwide operations. Originally from Adelaide, the charismatic Roberts started with Castrol Australia in 1946 and some thirty years later - after a spell in the US - he was appointed to run Castrol UK in April 1976. Famous for demanding Castrol bring back 'The Razamatazz', Roberts amped up the company's international motorsport budget and following soon after was the development of Castrol RS 15/50 racing oil - used exclusively for motor racing.
This mirrored the success of Castrol Australia's motorsport connections which, in '72, saw the first of Peter Brock's eight Castrol-backed Bathurst wins. The 70's saw Castrol oils used by winner after winner; including Bob Jane at the Australian Touring Car Championships along with household names like John Harvey, Colin Bond, George Shepherd, Andrew Cowan, John Bryson, Peter Lang, Warwick Smith and Bob Morris.
Bathurst's famous Griffin's Bend was renamed Castrol Curve (then the GTX Bend) while the Castrol 6-Hour motorbike race at Amaroo Park and the Castrol International Rally became major fixtures on the Australian motorsport calendar.
Castrol also sought to partner with major players in the automotive industry to develop higher performance oils and in turn worked closely with Holden, BMW, Ford and Mitsubishi as Castrol GTX became Australia's most popular multigrade oil.