Petrol price WARS: Asda vs Morrisons vs Tesco - how much will petrol prices go DOWN? PETROL prices are set to decrease tomorrow according to supermarket bosses, but how much will prices fall by? Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Taking THIS test drive could land you a FREE CAR, here’s why WATCH the NIO EP9 electric supercar smash Nurburgring lap record Diesel car CRISIS - Your car could be worth thousands less thanks to the GovernmentSeat 600 RETURNS - Car restored ahead of its 60th anniversaryDrivers beware - if you wrote THIS on your car insurance your vehicle could be crushedHonda Civic Type R - Watch the horror moment the car flips over at Nurburgring