Fuel consumption in a car is based on factors like the shape and weight of the car. Toyota and Honda are both car brands which consume less fuel.
Yes, directly proporiate to weight. A 2500lb car will consume half the fuel of a 5,000lb car
Yes. Bigger tyres=> more friction => more strain on engine=> more fuel used
Yes it will. A/c will put another load on your engine which will cause it to want more fuel.
No it will not. It will either be leaking or become clogged which will make the heater not produce any heat. it has nothing to do with fuel mileage.
Regardless of the size needed by the heater, the car's alternator will be the limiting factor. If you oversize the inverter to more than the alternator can handle you may burn out the alternator. Heaters consume allot of amperage.
There could be a few reasons why a car will consume more fuel. It could be due to a failure in the fuel system, a bad o2 sensor, bald tires and bad brakes.
1.5 to 2.0 km/lt
usually fuel injectors leak gas on the engine block and car missfire in acceleration, also consume more gas than normal
Many are heavy cars with powerful engines. It takes fuel to move them.
No you will actually save gas. It works pretty good actually.
No, the heat in your vehicle is made from the the heat of the radiator fluid. It dose not take more fuel to use the heater.