no
not much spoilers are only effective at very high speeds
What is the fuel consumption of 1000 litre carRead more:What_is_the_fuel_consumption_of_1000_litre_car
If they're not streamlined, they'll have a higher drag coefficient. This, in turn, will lead to reduce top speeds and increased fuel consumption.
How would anyone know your car gas consumption? Only you can answer that.
No, there is not. There are lots of devices that claim to reduce fuel consumption but none of them actually work. Not one.
Yes but not by much.
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.
Increasing a vehicles weight will decrease it's acceleration, braking performance, cornering performance and life. It also increases the cars fuel consumption and tyre wear.
yes
If you maintain your car properly with the performance of the VVT-I engine we can expect a fuel consumption of @ least 15 km/l.
it depends on what car but id say about 15-25 gallons
It depends on the weight, fuel consumption and general dynamics of the car