* Fuel efficiency varies greatly: Factors like driving style, road conditions, tire pressure, and even the car's overall condition can significantly impact fuel economy.
* No specific model: You haven't specified the exact model or trim level of the Vectra (e.g., GLS, CD, etc.). Different models might have different fuel consumption figures.
* Engine variations: There could be minor variations in the 2.0L 16V engine over the years, affecting fuel efficiency.
How to find the information you need:
1. Check the owner's manual: This is your best source for the manufacturer's stated fuel economy figures.
2. Consult online resources: Websites like fueleconomy.gov (for US cars) or similar websites in your country may have fuel consumption data for this model.
3. Use a fuel calculator: Keep track of how much fuel you use and the distance traveled to calculate your own average fuel economy.
Remember: Fuel economy figures are typically given in liters per 100 kilometers (L/100km) or miles per gallon (mpg). You may need to convert these units to miles per liter if that's what you prefer.
