No, fuel consumption is decreased, the vehicle rev's lower.
no you don't have to drive with overdrive on permanently, but you will change gear quicker and less smoothly, also your fuel consumption will increase by as much as 50%.
It will not increase fuel consumption.
No it does not affect fuel consumption.
You should leave the car in overdrive at all times, unless driving conditions dictate otherwise. The overdrive is intended to optimize fuel consumption.
Not enough that you would ever notice.
check the injection , and go for tuning. the tuning might be off
yes
no it should increase fuel consumption as the oxygen sensor should compensating by adjusting the engine to run rich.
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.
(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
Normally the larger the engine the more fuel it will use under the same conditions.
using overdrive will use less fuel as it is another gear to lower your rev's Overdrive is a crusing gear to get better fuel efficiency at the price or torque