Red pickup truck showing 16 MPG without GasGuard to 22 MPG with GasGuard

★ Trusted By 1.5 million Drivers

Stop Burning Money At The Pump^™

Our guarantee: The GasGuard will save you at least 30% on gas, or it’s free!

MSRP $64.98Now Only $39.98

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“Gas prices used to eat me alive before. My truck went from 14mpg to 25mpg! Can't recommend GasGuard enough.”
Mike Dawson ★★★★★

Save Big Money At The Pump
Enhance Your Car's Gas Mileage
Plug N Drive. Installs In Seconds!
Fits Most 1996 And Newer Vehicles
Mechanic Recommended

How It Works

3 Steps. That's It.

No mechanic. No tools. Just plug in and drive.

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Step 1 - Order

Keep your eyes peeled! After 24 hours you'll see an email in your inbox containing your very own tracking number!

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Step 2 - Delivery

After 7-12 business days, your order will be delivered with insured tracked shipping to your address.

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Step 3 - Save Money!

Congratulations! You're on your way to saving big money on gas!

Built Tough

Why 1.5 million Drivers Trust GasGuard

ECU tuning tech in a device smaller than your key fob.

Save Big Money At The Gas Pump

The GasGuard chip helps you get more miles per gallon when driving, which saves you money at the gas pump every time you fill up. To date, we have helped over 1.5 million customers reduce their fuel consumption by 30% and save them thousands per year!

Enhance Your Car's ECU System

Nearly every vehicle is built with an electronic control unit (ECU). This is a programmable chip that, when used with the GasGuard, will reprogram your vehicle's system to enhance its fuel efficiency by up to 30%!

Installs In Seconds. No Assembly Or Tools Required

This device is easy to install. Just follow the quick and easy instructions and go! Locating the OBD2 port in your vehicle can easily be found through either your vehicle's user manual or on the instructional panel within the GasGuard packaging.

Small & Lightweight

No big and bulky eye-sores to the inside of your vehicle. The GasGuard is small and lightweight, making it super easy to install and even easier to conceal.

Wide Compatibility

The GasGuard fits nearly all vehicle makes and models from the year of 1996 or newer. Cars, trucks, and SUVs. If it has an OBD2 port, it works.

CO₂ ↓

Save Money While You Fight Climate Change

By lowering your fuel consumption each time you fill at the gas station using the GasGuard, you are actively doing your part to decrease the harmful carbon pollution caused by transportation!

Real Talk

What Drivers Are Saying

10,000+ verified five-star reviews. Real people. Real results.

Dave B.

Jan 12th, 2026

★★★★★

Very Happy & Beyond Impressed

“I was a little skeptical at first seeing this on facebook. But my 2009 Honda Accord had an average of around 25mpg. I wanted to improve this. So I checked the pressure on my tires and added this GasGuard chip. It says it takes about 150 miles to adjust the computer's ECU. I filled up the tank of fuel and took a trip to visit my parents out of state. It was a 167 miles round trip. My fuel mpg for that trip was a little over 37. Very happy & beyond impressed with this technology!”

Chris E.

Oct 3rd, 2025

★★★★★

Extra 4 Days Per Tank

“Installed it in my 2021 Chevy Silverado 1500 in about 20 seconds. I drive 80 miles round trip for work and I’m getting an extra 4 days per tank. At $4.20/gal that’s real money.”

Richard O.

Dec 28th, 2025

★★★★★

21mpg to 27mpg. Legit.

“My 2019 Toyota Tacoma went from 21mpg to around 27mpg. Been using it for two months now. The gas savings already covered the cost three times over.”

Josh G.

Nov 15th, 2025

★★★★★

Bought Two. Both Work.

“Bought one for my wife’s 2020 Honda CR-V and one for my 2017 Ram 1500. Both saw improvement within the first 150 miles. Easy install, no complaints.”

Ian R.

Feb 10th, 2026

★★★★★

Life-Saver

“This thing is a life-saver. So far it looks like I've added 13 mpg to my average. I just wish I saw the sale before I bought them 3 of them at $64 a piece!!!”

Save More Than You Think

How Much Could You Save?

See how GasGuard adds up month after month.

Monthly Miles	Gas at $3.50/gal	Gas at $4.00/gal	Gas at $4.50/gal
1,000 miles	$59/mo $708/yr	$67/mo $804/yr	$76/mo $912/yr
1,500 miles	$88/mo $1,056/yr	$101/mo $1,212/yr	$113/mo $1,356/yr
2,000 miles	$118/mo $1,416/yr	$134/mo $1,608/yr	$151/mo $1,812/yr

Based on average fuel economy of 16–18 MPG with a 30% improvement. GasGuard pays for itself after one fill-up.

Got Questions?

FAQ

Everything you need to know.

How long will shipping take?

We ship to the US, UK, Canada, Australia, and New Zealand. Delivery takes 7–12 business days. Shipping is FREE.

Will this work with my vehicle?

Yes. Works with most vehicles 1996 and newer with an OBD2 port. Cars, trucks, SUVs.

Keyless ignition , does it still work?

Absolutely. OBD2 port is independent of the ignition system.

Why don't manufacturers include this?

Auto manufacturers and oil companies work together. Making cars too efficient isn't in their financial interest.

Where's the reset button?

Top flat surface, opposite the plug-in side. Two small holes,larger one on top left.

Diesel compatible?

Yes, GasGuard is fully compatible with diesel vehicles.

What if it doesn't work for me?

30-day money-back guarantee. Full refund. No questions. Zero risk.

Stop Burning Money At The Pump^™

3 Steps. That's It.