From AA Petrol Watch, 21 May 2012
Pump prices have finally fallen – after the AA first called for prices to drop a month ago – with Z cutting the price of petrol 4 cents per litre, and diesel 3c. It’s the first price change in 10 weeks, and the first price drop since early February. It’s also the longest period that motorists have ever paid so much – $2.20/litre – for petrol. While petrol prices peaked at $2.22/litre in May 2011, that lasted less than a week – the previous longest run was a month on $2.19/litre in early 2011. The highest diesel price was $1.92/litre for 10 days in 2008.