3 Pack Bg 44k Fuel System Cleaner w/ Bg Funnel - 3 Cans

Had a sticking fuel sending unit. Fuel gauge started working again after one can!

Pretty expensive but it does do a good job.

I used this based on recommendation of a trusted service center. I have used Lucas and more recently Techron cleaner. This is on par maybe a bit better then Techron. Notice a small gain in mileage and ran smoother. Good purchase

This is amazing stuff! I bought a non-running 2003 Windstar from a buddy for $300 five months ago. After replacing the fuel pump, spark plugs, wires, coil pack, and one fuel injector, it was running like a champ, but only getting 12 miles per gallon in suburban driving. I mentioned this to my mechanic, who told me there is only one gasoline additive that will help...44K. I, of course, thought he was just blowing smoke. But he is a good mechanic, so I tried 44K (wow, do I sound like I'm hawking snake oil or what!). I put one can in with a full (25 gallon) tank of 87 octane gasoline several weeks ago, and by the end of that tank, mileage was up to 15-16 MPG, where it continues to be. The treatment may have given the car a little more power, but that is just as likely a "placebo effect." There were no other variables, and I had been getting the 12 MPG for a solid four months prior to using the 44K, so I can't attribute the improvement in gas mileage to any other identifiable factor. Most definitely worth a try.

Here is a first impression review. I received the BG 44k fuel system cleaner promptly and it was very well packed. I ordered the three cans with the funnel that fits right on top of the can. The funnel was great to use and easy to put onto the can. The nice thing is that there is no way to spill and you can just tilt the can up and leave it until it is empty. If you use it, make sure the funnel is completely seated or it will leak. I had no trouble seating it but it does take some care. Use a rag or several paper towels when you remove the funnel because it will snap off abruptly and there is residue in it. Wipe it well and store appropriately. So far, I have put about 75 miles on the tank of gas and haven’t noticed any different performance. Not sure you’re even supposed to. Maybe when I fill next the mileage will be better. I’ll update when I fill up.

This stuff really works. Unlike other fuel system cleaner products where you hope or guess they work, you can feel it with BG 44k. I first put it in my 2014 Kia Optima (has a GDI engine). I can't say the car was running bad but I had noticed it had lost a little of it's pep since I first purchased the car. By mid-way through the tank of gas with 44k in it, I could already feel the pep in the engine had returned. Gas mileage on the highway is up about 1mpg which doesn't seem like much but when you commute 90 miles a day, I'm good with anything positive. I then put it in our 2007 Kia Sedona van. I purposely drove it on my normal commute (90 miles) and measured the mpg. Just like the Optima, the mpg seemed to have improved. The van when new was rated at 25mpg on highway. It was averaging more like 22-23. On yesterday's commute it measured at 24-25. No doubt about this product working.

This was recommended by a mechanic friend of mine. If you have a HIGH Mileage vehicle, and haven't used this stuff or something similar on a fairly regular basis before, avoid it. It cleans very well, is designed to work by the heating and cooling of your engine, and must be used when you are going to drive through your whole tank in short trips allowing the engine to heat up and then cool down completely between start-ups. I do not recommend this for High-Mileage un-previously treated engines as it will knock off all the gunk built up in your system and cause problems during start-up, and may cause fuel delivery issues, because of gunk getting knocked loose and lodging somewhere in your system and blocking fuel flow.

I just had almost the same experience as another reviewer. Fortunately, or unfortunately, the yellow funnel it comes with didn't fit on the cans. So I didn't experience the "spill" of the product. I'd be cursing up a storm had that happened. I had to use my pocket knife to assist the funnel in opening the access to the tank. Two little nodules at the opening that have to be pressed simultaneously in order to get access to the tank in my car and the yellow funnel is not wide enough to do this on its own. Just find a funnel with a tip with the same circumference as the metal tip at the business end of a gas pump hose, and it should work fine (test before you spill). My vehicle is fairly new (Purchased in April 2017), so I'm using the product to maintain its power and efficiency (Charger Daytona SRT8 6.4 liter engine). So far so good.