So I've managed to pick up a sales brochure for our car and on the rear page it states "thanks to the knock control 95 can be used instead of super plus. In order to achieve maximum fuel consumption benefits on the FSI engine ULSP must be used". So I assume today's fuel either 95 or any of the super brands are now ULSP?
On modern direct injection petrol engines, the after treatment system has have robust conversion efficiency to, soot/particulates, hydrocarbons, non methane hydocarbons, CO and NOx up to 160k kms. As Sulphur acts as a catalyst poison, in line with the EU5 exhaust aftertreament standard, the fuel standard, in the EU and the UK, was upgraded to aid after-treatment durability to that mileage. This was mandatory from the introduction of EU5 in 2009. So UK pump fuel now has no more than 10pmm of Sulphur and also %5 of Ethanol.
