Car owners, if you've noticed your engine running rough, losing power, or just not getting the gas mileage it used to, this DURA LUBE fuel cleaner might be exactly what you need! One 16oz bottle treats up to 42 gallons of fuel and works with all gasoline engines - including those using E-10, E-15, and E-85 ethanol blends. It's seriously concentrated stuff that cleans your entire fuel system: fuel injectors, carburetors, intake valves, ports, you name it. What's great is it's 100% safe for all vehicles (including GM and GMC) and won't void warranties or harm catalytic converters. You'll notice smoother idling, better acceleration, and improved fuel economy after just one treatment. Use it every 3,000 miles to keep everything running clean, or when you notice performance dropping. It also helps stabilize poor quality gasoline and adds corrosion protection - perfect if your car sits for a while between drives. The directions are straightforward: just pour it into your gas tank before filling up. For the price of about one tank of gas, you could potentially restore lost performance and improve your mileage. Seriously, if your car has some miles on it or you just want to maintain peak performance, this cleaner is definitely worth trying!