We had main grade petrol and diesel available in tank at all times during May, but problems at terminals affected the ability of customers to lift product Our audit programme in Brazil is now in its third year, engaging suppliers in a continuous programme of improvement involving annual third party audits Our biofuels & the RTFO In order to provide transparency on the origin of our biofuels as well as a better understanding our biofuel sourcing practices, we are publishing cumulative and monthly information on the biofuel we have supplied under the UK Renewable Transport Fuel Obligation Bioethanol is used as a blend component in all the petrol we supply, up to the 5% limit permitted by national and European fuel standards