BG 44K Fuel System Cleaner Review

Why are Fuel System Cleaners Necessary?

Over the years, there have been numerous reports that fuel quality has dropped. In fact, in 2012 one fuel company sold almost 2.1 million gallons of contaminated fuel that damaged customers vehicles. It cost upto $1,000 per vehicle to rectify. The fuel contained high levels of an undisclosed residue that clogged up engines.

Gas station pumps can also introduce sediment into your fuel tank, with small rogue particles that pass through the pumps inline filter.

Some fuels today have high levels of ethanol that absorbs water and causes internal corrosion and fuel companies in some cases have removed cleaning detergents that used to come in their fuel from the pump, searching for reduced emissions. Fuel doesn’t always meet the minimum requirements specified by vehicle manufacturers.

Fuel Quality is Decreasing

Whether fuel is getting worse or not, engines build up accumulations of carbon and soot, that are combustion waste products. In the hot temperatures of engine cylinder bores, they can bake onto surfaces and become really stuck fast.

Any difference in the volume of air in the cylinder bore would be like lightly squeezing your nostrils and breathing. Try it. Your breathing becomes more difficult and may even make you feel out of breath.

If you do this long enough, you’ll get a headache. This is exactly what the carbon deposits do to your engine, restricting air flow needed for efficient combustion.

How does this Affect Engines?

The engine responds by burning more fuel, but without the exact supply of air it needs, this results in further carbon build ups and a deterioration of engine performance.

It will increase fuel consumption, tailpipe emissions and decrease engine performance. One test by fuel additives company BG Oils showed an 8hp power loss over a few years in a modern car.

Our modern cars are often fitted with smaller, high performance engines that have less margins for variations in fuel quality and these are very sensitive to carbon build ups.

It is important then to use a fuel system cleaner with most new cars.

Choosing an Effective Engine Cleaner

When selecting fuel system cleaners, you should look for one that contains high amounts of PEA, or polyetheramine. This is the most effective product to use against carbon deposits, as it chemically breaks them down.

In this article, we are reviewing a product called BG 44 K Fuel System Cleaner.

Step In BG44 K Fuel System Cleaner

BG44k is designed to be used in the fuel tank. You add a full can to your brimmed tank. Introducing the additive into the tank allows it to work on all components of the fuel system.

Does BG44K Fuel System Cleaner Work?

Does it work? We’ve watched numerous videos online to see how BG 44 K affects your injectors, valves and internal chambers. And it definitely softens carbon deposits in just one treatment. However, it does not seem to remove them and that is likely due to its chemical formula.


The chemical we talked about above, PEA is not included in the BG 44 K mix. Instead, it uses a number of simple solvents to attempt to remove the carbon sooting, with mixed results. It seems that actually, BG 44K is intended mainly as an injector cleaner and varnishing remover.

Some of the combustion waste material, rather than building up in sooty films, actually glazes over and creates a varnish like substance on internal surfaces. And it those lighter films that BG 44k seems particularly effective at removing.


For the heavy deposits of carbon and other particulates, BG44K merely softens them. Therefore, we can’t recommend this product, and suggest instead you try something like Seafoam, which has a very high concentration of PEA and is shown to be effective on even baked on, stubborn build ups. Add to this, BG44K seems to be listed at much higher price point, the reason for this, we cannot fathom.

Have you tried BG44K and found it to be effective? Let us know in the comments.

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