The only fuel additive I've found that works.
347941
There was a definite improvement after the first half a tank.  I had been experiencing rough idling and stumbling with my 2011 Chrysler Town & Country (49K miles).  I had tried other fuel treatments with little to no improvement.  I did end up going to a BG authorized dealer for the BG Air Induction service where they clean the MAF and throttle body.  That completely cured the rough engine problem.
2989050
I own a 1999 Subaru Forester and add Lucas 10013 Fuel Treatment almost every time I fill up. The engine runs noticeably smoother with improved gas mileage. My car runs better on non-ethanol gas but it's not always easy to find it. The Lucas treatment eliminates the negative effects of ethanol gas. I highly recommend it. Definitely buy this 1-gallon sizeit's much more economical than buying individual small bottles.
30910
The heat and humidity in my part of the country can deteriorate the quality of fuel. This stuff stabilizes it.
1735641
These days I use this mostly on exhaust system bolts and O2 sensors.  It makes a difference and while it's still tough to get an old O2 sensor out, the Anti-seize compound stops the corrosion and leaves clean internal threads.
707942
I had a vehicle with a nearly full tank of gas that was not used for three months this past winter.  Ethanol being what it is, it will significantly degrade the quality of the fuel and also result in phase separation.  Before even starting the vehicle I purchased a bottle of Star Brite and treated the entire tank overnight.  I'm pleased to report the additive worked, no starting difficulties, no clogging of fuel filters, and the vehicle seemed to run better the more it was driven.  Since then I have kept a bottle or two on hand for gasoline kept in storage (i.e., for lawnmowers and two-stroke engines).  While not a substitute for changing fuel filters at factory specified intervals, a bottle or two every 5 to 10K miles seems to keep fuel residue to a minimum as well as eliminate water molecules in the fuel system.  This additive seems to address the major problem with ethanol fuels in that they attract water and tend towards phase separation.  Phase separation is definitely not where you want to be, where the fuel and the water actually physically separate within the tank, particularly in subfreezing temperatures.
279143
I've used this stuff for three years on my 2015 F350 PSD because I had heard that Ford won't fix a water in diesel fuel engine problem under warranty and Stanadyne is supposed to do something that keeps the water in fuel from becoming a problem. My truck is out of warranty now but I think the product is beneficial to keep using anyway. I buy the eight ounce bottle because it is easier to use than pouring it out of a gallon jug, I just wait until I need thirty gallons of fuel then put in one bottle and the fuel, no fuss, no mess.
1374410
Excellent buy for this miracle additive that keeps my working 4 wheeler, chainsaw outboard motor, generator working and not  being messed up by the stupid ethanol additive to our gasoline that ruins that type of gasoline driven equipment  ( all in the name of reducing our dependency on imported oil and instead increasing the cost of corn grown in the U.S.)
2360806
this is a great product that pays for itself!

nobody knows what additives are left out of today's generic gasoline.

regular use of Lucas fuel treatment keeps your injectors clean and your ensures your emissions equipment is functioning.

as an aside, using the lucas along with changing your fuel filter at recommended oem intervals and properly inflated tires will optimize your car's mpg's.

you should also use this product in your lawnmower, snowblower and other power equipment along with the lucas ethanol stabilizer to keep all your yard equipment running  like new.
2889282
This stuff is magical. I've got an older Porsche that starts and idles rough after it's been sitting in storage for a while, especially in the cold. I run one or two bottles through the car, after that it starts and idles perfectly even in the winter. I've never used a product more effective at cleaning out old fuel deposits. Highly recommended.
853006
In the past I'd used carburetor cleaner, a relatively soft plastic blade, and a very soft brass bristle brush to clean carburetor and other motor parts.  I saw some very good reviews for chem-dip and decided to give it a try, and I could not have been more impressed with the results.

It essentially dissolves or at least substantially softens build up and grim on carburetor and other engine parts to the point where when I'd pull a particular part, bolt, etc. out of the dip I could either just wipe off the residue with a rag or at most I'd use a tooth brush to easily scrub remaining grim or heavy residue off of the part.

In most cases I'd leave a part to soak in the chem-dip for 30 to 60 minutes, but occasionally I'd leave a particularly dirty part to soak over night.  Without fail, this product delivered on its advertised promise and has all but eliminated the tedious task of cautiously scrapping and scrubbing parts and the need to constantly deal w/ the much more noxious fumes of aerosol carburetor cleaner.  Though, while the chem-dip does not have nearly as noxious fumes as other cleaners, I still recommend working in a ventilated space while scrubbing off the parts pulled from the dip for good measure.

The only complaint I have regarding this product is the size of the can.  While at 3/4 of a gallon it takes most small parts, I only wish it were bigger so I could fit even larger parts.  I'll probably look to see if they offer a 3 or 5 gallon bucket with a similar strainer included in the future, as I'd love to soak elongated parts like intake manifolds and other bulkier parts.
2995799
I have tried several different fuel stabilizers in my motorcycle and snow blower with mixed results. In several cases, I needed to have the fuel system cleaned out because it gummed up the system. My motorcycle mechanic recommended Star Tron and I have used it in a few machines over the winter. All started with no problem at all. I am sold on this. It will be the only stabilizer I use for extended storage on my machines going forward.  It bit more expensive than most, but well worth it to know your engine will start.
2550752
I use Lucas oil additives in my cars with great success, however I can't recommend their octane booster, my bike was still pinging.
340750
Wow - this is very highly rated, and I gave it a try to clean the injectors in two of my cars.  Our cars already worked well so I didn't see a major difference in performance.  But, it gave me peace of mind knowing that the system had been cleaned.  This is rated as one of the best, if not the best, fuel additive for cleaning your fuel system.  I was happy to find it at a good price on Amazon, and the convenience of having it come to me was a plus.  Great additive - you won't go wrong.
1974172
This stuff is a miracle. I desperately needed to clean the glass window in my pretty, brand new pellet stove (I had the vents configured wrong for the first week, and wound up baking the soot IN, instead of venting the soot AWAY - Hahaha!). I had tried a ceramic range-top cleaner from the hardware store in town - nothing. Then I bought a lye-based spray woodstove glass cleaner from Amazon, and that was equally useless (EDIT: at first, it failed totally, but to be fair, it did work later in some situations - just not as versatile as the Rutland).

With this Rutland product, I turned a 14x14 inch glass pellet stove door window from burned-in black soot to sparkling clear in about 30 minutes. The window glass had been a sheet of hardened, ceramic-like BLACK soot - the consistency of black chrome. And I had resigned myself to having to buy a new glass for my stove window - what a relief! This stuff saved the day.

It doesn't seem to have any way-harmful chemicals (don't drink it, but you don't need a respirator). It turned my ruined, ugly pellet stove window into my pretty and sparkly new wonderful glass again.  THANK YOU Rutland! I ordered and received two more bottles, for the winter heating season. I plan to make this part of my weekly routine (or whatever the best routine is).

BTW- Full disclosure: After Rutland's miracle save, I went back and tried the lye spray again on a single day's soot build up (not the black chrome I had allowed to develop). On that lighter soot it worked wonderfully - just that it does have its limits.

P.S. This is the manufacturer's photo of my burgundy-color stove - my first pellet stove ever, and I love it, now that I can see into it!
2133678
This product fouled one of my fuel injectors. I have a 2002 Toyota Tacoma. It runs like a champ, and I've used Techron at every oil change, and Techron has always smoothed things out.  Well, I decided to try something different at my last oil change. I should have just stuck with Techron, but I put BG 44K in it instead. Within 60 miles of adding BG 44K to the tank, my truck started bucking and the check engine light came on with a Code P0171 (lean fuel) and a Code P0304 (misfire cylinder #4). Long story short, I learned that BG 44K contained strong solvents, and it loosened up junk in big pieces which then fouled the fuel injector is cylinder #4. Not cool!  If you're debating between Techron and BG 44K. Go with Techron. Better safe than sorry. Techron cleans more gently, and it does a nice job lubricating things up. My truck always ran smooth as butter after Techron. My truck never misfired once in its life until I tried BG 44K.  Also, I've read the strong solvents in BG 44K can ruin plastic and rubber parts in the fuel system. There are better products out there than this stuff.  And as always, if it ain't broke, don't fix it.
1845081
I wish I had discovered zeolite sooner.
A quick internet search will tell you all you need to know about what zeolite is, and it's pretty much proven to work at absorbing ammonia.
This stuff is amazing at reducing ammonia odors in litter boxes. Don't get too excited, though. Nothing will help with that fresh poo smell. That's just gases escaping. Not much you can do about that until they dissipate. If anyone can prove me wrong, I am welcome to new information!!
I'm particularly fond of this brand. It doesn't contain any perfumes like other brands I've tried (adding perfume on top of my already scented litter made my head hurt!), and it's less costly than others that work about the same.
One trick I've learned is to add a GENEROUS layer on top of the litter when needed, and let your kitties do the mixing.

Don't expect this stuff to miraculously make your litter box odors disappear. It helps A LOT, but it's not magic.
4439761
Absolutely essential in Southern California for those who drive the old air cooled VW's. California's gasoline, adulterated with 10 percent ethanol, has been turned into a corrosive fluid that eats fuel hoses and diaphragms for lunch, causing embarrassing pinhole sprays of of gas when least expected. Star Brite prevents this rot. I use it in all five of my decades-old bugs and buses.
Although the Star Brite can't do anything about the ethanol-caused loss of octane in our gas, it does do a good job of keeping the gas and ethanol mixed, rather than separating into an alcohol/gasoline shepherd's pie nightmare in the tank.