When I bought my GL1800 in August 2002, one of the first things I did to it was drop 2 of the F5-T units into the tank.  I had so much liked what it did for my GL1500 as well as the other engines listed in the previous review that I wanted the same thing from this bike.  All I can add to this review is that their product really works.  You can contact them by clicking on their button to the left or on any of the photos or call them at (888) 881-2774.

Fitch® Fuel Catalyst by Advanced Power Systems are products that really work as claimed. It is a pre-combustion catalyst that is simply dropped into the fuel tank of small engines like those on outdoor power equipment, motorcycles, etc., while on larger engines such as automobiles and trucks it is installed in the fuel line much like a fuel filter. It is maintenance free with a life of 250,000 miles in commercial applications. In non-commercial applications it should last for the life of the engine. The benefits of the product include: reduced emissions, reduced fuel consumption and increased power; carbon buildup in the engine is minimized and engine oil stays cleaner, longer. The product also has demonstrated an ability to keep fuel fresh during off-season storage of seasonal equipment. This is not an additive and it is even made in the U.S. I dropped the #F5-T ($49.95) comprising of two units, in the tank of my 95 GL1500 (1-2 units per 6 gallons of tank capacity, unless you have split tanks, then 1 per side is required) and my first tank full showed an increase of almost 3 miles per gallon. I was impressed. After having it in my tank for a while, I had my oil changed and it sure was black. The cleaning of the carbon buildup caused this. Since then, my oil looks cleaner as they claimed it would. I have also noticed that I shift at lower rpm's than before. I then had the #F350 canister ($299.00) installed in my gas line of my new 5.9 Liter truck. This took a little longer, but after a long trip of 2500 miles, I then started getting about a 20% increase in mpg. This has led me to purchase another unit for Carm's SUV #F200 ($159.00), a small drop in unit for my weed wacker #F2T ($14.95) that I always forget to empty of gas, another F5-T for my garden tractor and a F4-T ($19.95) for my gas can that I keep until used up. Since the Fitch® catalyst acts like a stabilizer, I no longer have to worry about the gas going bad and causing problems. For the motorcycle, $49.95 is really an inexpensive price to pay to have better gas mileage than your riding buddies. The benefits of improved power and fuel economy as well as the stabilization of fuel during the off-season are advantages any of us will appreciate. You probably can use one of the two units of the F5-T for your own bike and give the other to a friend, but remember that you can under do it but not over do it. You can also get away with using lower octane fuel and dealers may not deny warranty coverage for a vehicle based on the presence of the Fitch® Fuel Catalyst. You can contact them at (888) 881-2774 or check out their web site by clicking on their link button to the left.