In our quest to enhance our vehicle's performance, we recently tried the Heet Iso-HEET Water Remover and Premium Fuel Line Antifreeze. With its intriguing promise of increased gas mileage and improved engine performance, we were eager to put it to the test. The 12 fl. oz. bottle is conveniently sized for easy storage, making it a perfect addition to our roadside emergency kit. Upon using it, we noticed a smoother idle and better throttle response during our drives, particularly in colder weather. The added benefit of it also serving as an injector cleaner was a welcome surprise. While we can't verify every claim, our overall experience with Heet Iso-HEET has been positive-it's a reliable product that appears to deliver on its promises and might just be the solution we were looking for to keep our engines running smoothly year-round.