However, this is a simplification. Fuel consumption depends on many factors *besides* engine size, including:
* Engine design and technology: A modern, efficient 2000cc engine might be more fuel-efficient than an older, less efficient 1500cc engine.
* Driving style: Aggressive acceleration and high speeds will increase fuel consumption regardless of engine size.
* Vehicle weight: A heavier vehicle will require more power and therefore more fuel, regardless of engine size.
* Aerodynamics: A more aerodynamic vehicle will use less fuel.
* Transmission type: Automatic transmissions generally consume slightly more fuel than manuals.
* Load: Carrying heavy cargo will increase fuel consumption.
So while a 2000cc engine *has the potential* to consume more fuel, it's not a guaranteed outcome. You can't make a definitive statement without knowing the specifics of both engines and the vehicles they're in.
