---
id: guide-0036
title: "How to Shop for Better Fuel Economy and Calculate Real Savings"
category: guide
subtopic: fuel-economy-shopping
page_type: guide
source_url: "https://www.castlechevycars.com"
tags: ["fuel-economy", "mpg", "efficiency", "shopping-guide", "ev"]
questions:
  - "How do I compare fuel economy between cars?"
  - "What's the real difference between 25 and 30 mpg?"
  - "Are hybrids and EVs really more economical?"
  - "How do I know what MPG I'll actually get?"
related: [ev-basics, tech-features, total-cost-ownership]
dealer: Castle Chevrolet of Villa Park
---

Fuel economy is printed on every new car's window sticker (EPA estimates), but real-world driving varies. Understanding the numbers helps you see the actual savings.

## Reading EPA Estimates

You'll see city, highway, and combined MPG. Combined is the best overall estimate, but your own mix of driving (more highway = better mileage) changes the picture. Use EPA's fueleconomy.gov to compare models side-by-side.

## Calculating True Savings

Multiply annual miles by your local fuel cost, then divide by MPG. A car getting 30 mpg vs. 25 mpg saves roughly 400 gallons per 100,000 miles-real money over time.

## Electric & Hybrid Options

Casttle Chevrolet offers Chevrolet EVs (Blazer EV, Bolt, Equinox EV, Silverado EV) with zero tailpipe emissions and low energy costs, plus standard hybrids that blend efficiency with familiar driving. 

## Next Step

Tell our team your typical driving pattern. **Call (630) 279-5200** or browse our inventory to compare fuel economy across the models that interest you.