Dura Lube Severe Fuel System Cleaner | 16 oz., 6-Pack

Dura Lube is a good product

This is THE BEST fuel system cleaner that I have ever used! I use this to keep my engine running smoothly. I HIGHLY RECOMMEND! I put in about a half a bottle every other time I fill up my car.

Excellent fuel handling. One bottle and the car's power was back immediately.

I can’t rate the product till it had a chance to work. We will see if it works as expected. OK, so I used it for maybe 500 miles with no change in Cat converter performance. Still throwing error codes. I didn’t want to fool with it any longer so I replaced the Cat converter and problem solved. I did some research on this stuff compared to other products and found it rates faulty well in comparison. There are other ways to treat fuel for cleaning that are much cheaper. Home brew stuff. But you should make your own judgement. I would not expect this stuff to help much if your system is clogged up pretty bad. Mine was.

Exceptional Product!!!! Keeps my BMW X5 SUV running smoothly!!! Dura Lube products Outperform my Expectations!!!

I've used this product for years in all my vehicles, including my 2001 Dodge Intrepid R/T. Without hesitation, I put a bottle in a full tank of fuel after every oil change, (3K-5K) to maintain the entire fuel delivery system from the fuel pump to the injectors. Though my car has over 184K miles, the 3.5 V-6 H.O. engine runs smooth, idles quietly and accelerates hard as if she was still new...I truly believe in the effectiveness of this product, as well as the DuraLube Engine Treatment product. It also is noteworthy, to know the brand was founded in 1986 and the corporate office is still in Gahanna, Ohio....it's truly a first-class American-Made product, your vehicles best friend for longevity of its fuel system operation along with improved fuel economy and performance as the result...bravo!!

I have used 3 bottles of DURA LUBE HL-40199-06 1 with 1/2 tank engine light came back on at 150 miles I added a second bottle with 15gals of gas and engine light returned at 75miles I'm adding a third with 5 gals of gas I get the same error PO138 before using Dura-lube I replaced the sending units and exhaust from header pipe back.

I used this on my wife's 2008 Honda Civic Si (150k miles), and the hesitation/rough acceleration problems, and engine pinging/knocking noises under acceleration were resolved within the first 10-20 miles after using this. I also used it in my 2017 Honda CBR 1000RR motorcycle for similar problems, and I experienced similar positive results! I will continue to use it as part of our vehicles regular maintenance.