No it does not affect fuel consumption.
(no it uses the energy from the car battery not the energy made by the engine)Yes it does increase consumption because the battery has to be recharged by the power of the engine driving the alternator or the dynamo
yes
It will not increase fuel consumption.
No, fuel consumption is decreased, the vehicle rev's lower.
Not enough that you would ever notice.
In city driving the consumption is 11 mpg. On the highway it is 18 mpg, and on a combined cycle, it is 14 mpg.
no it should increase fuel consumption as the oxygen sensor should compensating by adjusting the engine to run rich.
8km/l average driving
If the generator is to maintain the same rpm and power output, then a heavier load will increase the diesel consumption. The revolutions per minute the generator runs will increase as the load increases, thereby resulting in an increase in diesel consumption to maintain the high rpm. A Generator has a governor which attempts to maintain frequency at 60 Hz for North America. For the generator to increase the power output at the same frequency, the governor will increase the fuel and air to the engine. The fuel consumption will not be linear because of the curves associated with the particular engine. The fuel to KWH is know as the heat rate curve for the generator.
Normally the larger the engine the more fuel it will use under the same conditions.
for my 1997 vitara sidekick its only 7km/liter on city driving and 10km/liter on highway driving.
11-12 km/l city driving