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It is impossible to say because of all the variables involved=== Speed --terrain---climate conditions--load --city, country driving--drivers driving habits ( heavy footed , always on the brakes) road conditions --tyre size--tyre pressures--- current draw from the alternator ( extra radio gear )-- roof loads . basically if you get 10 litres / 100 klms it will be average . There are some good auto magazines that include fuel consumption when they discuss different vehicles.
The short answer is no, there is not. Here in Australia it is the law that the appropriate and legal tyre sizes are listed on a lanel inside the glove compartment. To explain more though, so you will see why it's important to fit the correct tyre. If you take the tyre size... 215x85-16. It means 215= tyre width across the walls in millimetres 85 = Aspect ratio (the height is 85% of the width) 16= diameter of the rwheel rim H= High Speed L= low speed LT = light truck.
You normally would not put light truck tyres on the front of your vehicle and on the rear only if you carry heavy loads (but probably not then) Light truck tyres may be cheaper, but they do not ride as well.