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We know there is always skepticism with any fuel additive so we asked Gumout to prove that their products actually work. The folks at Gumout did just that and flew several forum users and our editorial team to a testing laboratory at the Transportation Research Center (TRC) in East Liberty, Ohio.
Gumout purchased a Hyundai Sonata with 80,000 miles at random from a local used-car dealership to show us typical deposit buildup on a vehicle driven by the average consumer. Gumout’s plan for this car? Show us its innards, reassemble it, fill the fuel tank with Gumout One-N-Done Complete Fuel System Cleaner treatment, drive the car and burn through a whole tank of fuel in accordance with the American Section for Testing Materials’ (ASTM) industry-standard testing procedures, pull the car apart once again, and see the results.
Gumout wants to give away a prize package to allow you to see the improvements on your own vehicle. The package includes:
2 x Gumout Multi System Tune Up
2 x Gumout One-N-Done
2 x Gumout All-in-One
Gumout decals and beanie
In order to win, post in this thread to let us know where you took your car this summer along with the phrase "I want to post a review thread of my experience with Gumout products." Feel free to include images of your summer trip if possible. Winner will be chosen at random on August 25th at 12:00PM PT.
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.
7 Most Reliable High-Performance Engines GM Has Ever Built
Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
Win a Gumout Prize Package! 
