diesel Oil companies deny hike in petrol, diesel prices Rates were last revised on December 1 when petrol was hiked by 13 paise a litre, but diesel rates were cut by 12 paise. Audi software can distort emissions in tests, VW says At least two class-action lawsuits have been filed against Audi in the U.S. over the issue. « Previous1213141516Next » 16 of 16