Penray Total Diesel Fuel System Cleaner was developed to prevent the formation of
asphaltenes, residue that can cause fuel filter plugging. It
also provides reduced oxidation to maintain fuel stability,
protection from rust and corrosion, prevents water entrapment in
fuel and enhanced fuel lubricity and deposit control.
• Formulated to dissolve and disperse asphaltenes, preventing
asphaltene filter plugging
• Great year-round cleaner
• Helps improve lubricity
• Helps prevent fuel system corrosion
• Improves power
• Attacks extreme cases of dirt, grime and sludge
• Helps prevent degraded fuel from plugging fuel filters or
• Contains extra solvents and detergents
• Restores cetane
• Compatible with bio-diesel blends
• Just 4 oz. treats a typical 30 gallon fuel tank
What are Asphaltenes?
Do you see black tar-like specs floating in your fuel? Does your diesel
fuel appear discolored or darker than normal? Are your fuel
filters black and getting clogged rapidly? Are your average MPG's dropping dramatically? Asphaltene might be your problem!
This particular issue has become a widespread problem in recent
years. Most trucks manufactured after 2002 contain a common rail
injector and it is this equipment that is oftentimes responsible
for creating destructive asphaltenes. Also, the advent of Ultra
Low Sulfur Diesel fuel (ULSD) has been associated with the
formulation of asphaltenes.
Water and Sludge Leads to Asphaltene Buildup
The presence of water and sludge in diesel fuel can contribute
to the formation of tar-like asphaltenes. This substance can
develop with many current fuel formulations, particularly so
with Ultra Low Sulfur Diesel fuel (ULSD) and bio-fuels which can
lack the aromatic solvents that were previously part of diesel
fuel blends. And the growth of asphaltenes is exacerbated by
newer, hotter-running engines, and operation in warmer climate
Fuel Scorching Leads to Asphaltene Buildup
Simply put, the injector operates with a large amount of
pressure and at a very high temperature and unfortunately it can
scorch (burn) the fuel. This burning can create a black
asphaltene buildup. The small pieces of asphaltenes, which
contain carbon, group together forming larger clusters that can
eventually plug the fuel filters and lead to a shorter filter
life. This can cause lost MPG in your vehicle, and that means
you are wasting money and not getting the most out of your fuel.
Asphaltenes can be present any time of year and it's all too
common so be on the lookout! To prevent asphaltenes you can used
a quality diesel fuel additive such as Penray Total Diesel Fuel
Penray Total Diesel Fuel System Cleaner can be used in bulk
diesel fuel tanks and individual tanks.
Add 1 gallon of Total Diesel Fuel System Cleaner to 1,000
gallons of diesel fuel.
Add 1 quart (32 fl. oz.) to 250 gallons of diesel fuel.
Initial Treatment: Dosage may be increased if fuel quality is
suspect or when filter plugging has been experienced due to fuel
MAINTENANCE: After initial clean up, dosage may be
reduced for system maintenance depending on severity of
Also available in 5 gallon pails. Please call
for price and shipping cost.