Multiple reports say UK fuel prices are climbing again, with average petrol and diesel costs reaching new post-war highs. The articles attribute the increase to international pressures, including the continued impact of the Iran war, and note that the rise is affecting motorists during the summer holiday period. One report says the average petrol price has reached a new post-war record, while diesel prices have also increased. It adds that the cost of filling a typical family car has risen to £89 for petrol and £100 for diesel, based on current average pump prices. The coverage also highlights potential political and policy implications, stating that the fuel price rises are adding pressure on Labour regarding plans related to fuel duty. Overall, the articles present the development as a sustained increase in pump prices that is making everyday motoring more expensive for consumers, particularly during a period when driving demand is higher.