Helix Ultra 5w40 is a relative bargain in Oz. Not much more expensive than the US price. M1 0w40 is a HUGE bargain in the US compared to the Oz price. Its 3x-4x cheaper. The UK is similar. But at least there there are opportunities to get store brand and major brand synthetics at US like prices. Indeed, there were recent deals at Halfords and ECP that had ACEA synthetics at $2-$3 a quart. In Oz you have to settle for dino at that price point.