Advanced Formula Fuel System Treatment | 16 oz., 6-Pack

I have been using this product for years, I think it is one of the better products of it's kind. My car runs beautifully after using it. The gas mileage also increases slightly.

I have been using Dura Lube Fuel System cleaner for probably close to 20 years now. I used to find it in stores all the time then it became hard to find so when I would see it on the shelf I would buy several bottles. Having seen it available on Amazon in 6 packs made me very happy. When I first started using this stuff I had a GM 3800 engine which at times would run on the rough side and using this stuff actually smoothened out the engine. That was a big plus! Now I just use it every other fill up as a precaution and to help keep my fuel system clean.

I've bought this twice on two different occasions several years apart and I've noticed no improvement in gas mileage or horsepower from using it. I tried the royal purple and my mileage increased two mpg. I use the Lucas as well and I have had similar results. This was used on a 2004 Chevy Tahoe 4.8.

Does what it says it will do, cleans your fuel injectors and fuel system.

my personal watercraft with 3 large carbs set for 5 years after I had a major car accident. the gas in the tank and fuel lines and carbs was close to pure gunk. The shop said I needed a carb job for around 350 bucks because the gas sat for so long it completely clogged up the carbs and thats why it had no throttle response. So having use duralube before, I bought a bottle and poured a little into each carb. Poured some into the water separator. added to the 5 gallons of new gas in the tank. Started the engine to get it circulating. I let it set for 2 weeks until my "350 dollar carb job appt." I took it to the shop. He called back 4 hours later and wondered why I needed work done. I told him, he said, "Well, I'm not sure what you did but the throttle response is crisp and normal..but I could use new plugs because they were the original ones from the factory..... Duralube completely cleaned out 5 year old gunky gas residue. Just think how well it works on fuel system treatments and injectors...

Engine runs smoothly , this product really keeps the fuel injectors clean

Wow what a difference after use this product.

I like the Dura Lube but th is Amazon web site will let me take pictures and not let me post the pictures kicks me back to Amazon home page Terry Franklin