---
id: guide-0035
title: "How do I find a vehicle with better fuel economy?"
category: guide
subtopic: fuel-economy-guide
page_type: guide
source_url: "https://www.castlecadillacmchenry.com"
tags: ["fuel-economy", "mpg", "efficiency", "green", "guide"]
questions:
  - "How do I compare MPG between cars?"
  - "What affects fuel economy?"
  - "How can I save money on gas?"
  - "What does EPA rating mean?"
related: [electric-vehicles, hybrid-options, vehicle-comparison]
dealer: Castle Cadillac McHenry
---

Fuel economy (measured in MPG-miles per gallon) tells you how far a vehicle travels on one gallon of fuel. Higher MPG means fewer trips to the pump and lower fuel costs over time.

**Understanding EPA ratings:**
The EPA (Environmental Protection Agency) tests every car and publishes three numbers: city, highway, and combined MPG. Combined is what most people use for real-world estimates. Check the window sticker or online specs for any vehicle you're considering.

**What affects MPG:**
Engine size, transmission type (automatic vs. manual), weight, and driving conditions all play a role. Smaller, lighter vehicles typically get better mileage than large trucks and SUVs-though modern engines are increasingly efficient across all sizes.

**Your options at Castle Cadillac McHenry:**
Our team can help you compare fuel economy across models, discuss hybrid or electric alternatives if they interest you, and find a vehicle that matches your budget and driving habits.

**Get started:**
Call **(779) 265-4427** or browse our inventory at **https://www.castlecadillacmchenry.com** to explore vehicles and their MPG ratings side by side.