---
id: guide-0039
title: "How to Shop for Better Fuel Economy and What the Numbers Mean"
category: guide
subtopic: fuel-economy
page_type: guide
source_url: "https://www.castlevwcars.com"
tags: ["fuel-economy", "mpg", "efficiency", "guide"]
questions:
  - "How do I compare fuel economy?"
  - "What do MPG numbers mean?"
  - "How do I save on gas?"
  - "Which Volkswagen is most efficient?"
related: [vehicle-comparison, ev-basics, id-4-guide]
dealer: Castle Volkswagen of Schaumburg
---

Fuel economy is measured in miles per gallon (MPG)-the farther you drive on one gallon, the better your economy. The EPA posts two numbers: city (stop-and-go driving) and highway (sustained speeds). Real-world fuel economy varies based on driving habits, terrain, and vehicle load.

## Shopping Smart
Look for vehicles with higher combined MPG ratings if fuel costs matter to you. Smaller engines, lighter cars, and transmissions designed for efficiency all help. Volkswagen's lineup ranges from traditional gas engines to the all-electric ID.4, which uses no gas at all.

## Next Step
Check EPA fuel-economy data on specific models at **fueleconomy.gov**, then compare models at Castle Volkswagen of Schaumburg. Our team can show you fuel-economy specs for each Volkswagen model and discuss trade-offs between efficiency and performance. Call **(847) 593-4700** or browse **castlevwcars.com** to explore options that match your budget and driving needs.