Questions And Answers Q & A
How Much Smoke & Exhaust
Pollution Will I Reduce?
Between 5% and 54%
Examples:
Florida, County Bus System - 51%
State Road Contractor - 54.4%
U.S. Marine Corps. - 44.8%
(under load)
U.S. Naval Facilities
Engineering Center - 39% to 50%
Chesapeake Bay Foundation -
10.3%
Certified European Union
Government Owned Testing
Laboratory - 12% to 18%
How much fuel will I save?
From 2% to 12% documented. Some
client observations have been
higher.
How Much Actual Money Do I Save
Annually?
What Causes Black Smoke &
Exhaust Pollution?
Unburned fuel being blown out of
the exhaust is the primary
cause.
What Is A Catalyst?
Something
that affects the rate of a
chemical reaction but is not
itself used up in the process.
What Does The Catalyst Do?
It lowers the “activation
energy” of the pre-combustion
process allowing for
transformation of the components
of the fuel to form a more
energetic mixture. This results
in an increase in fuel economy,
a more efficient combustion and
a decrease in harmful
emissions.
What Else Does The Rentar Fuel
Catalyst Do?
It can also reduce engine
maintenance and extend engine
life as a result of the
reduction of harmful deposits
which can build up in an engine.
It can extend the useful life of
the oil and appears to extend
the life of the injectors.
Finally it reduces driver and
pedestrian health risk due to
the reduction in harmful
volatile organic emissions.
What Is The Rentar Fuel Catalyst
Made Of?
The Rentar is composed of a
patented combination of rare
earth elemnets and various
“active” metals housed in a
heavy gauge metal cylinder.
IS The Rentar Technology
Patented?
Rentar has 26 domestic and
international patents.
Rentar vigorously defends its
proprietary interest.
How Big Is It?
The specific size employed
depends on the size horsepower
and configuration of the engine.
Different sizes for different
engine models 10" to 20" long
and ranging in diameter from 1
½” – 3”; weights vary by size;
standard is around 3 pounds. The
Rentar comes with hydraulic
fittings.
Where Is It Installed?
The Rentar is installed on the
last single fitting of the fuel
line prior to the fuel entering
the engine block. On different
engines the installation will be
in different locations. Rentar
recommends the installation to
be as close as possible to the
point of combustion.

How Long Will It Last?
Some installations have been in
operation for 15 years. The
Rentar comes with a 10-year
limited warranty. It is
constructed of heavy-gauge
metal, has no moving parts and
there is nothing to add.
Is the Rentar Fuel Catalyst a
fuel additive?
No.
Additives are a continuing
expense and have been proven to
"pollute" the ground water.
Does the Rentar Fuel Catalyst
contain or utilize magnets?
No.
How long does it take to
install?
minutes.
Will installing The Rentar Fuel
Catalyst void my engine
warranty?
No.
Caterpillar, Cummins, Detroit
Diesel and International have
issued Rentar a letter stating
that the use of the Rentar does
not in and of itself void the
manufacturer’s warranty.
Will the Rentar Fuel Catalyst
restrict fuel flow?
No.
How may gallons per hour will
flow through a Rentar Fuel
Catalyst?
Up to 300 Gallons per hour with
the JIC10 fitting provided.
Larger diameter units can
accommodate larger flows.
Can I take the Rentar Fuel
Catalyst off of my engine when
my engine is worn out and use it
on another engine.
Yes.
The Rentar Fuel Catalyst can be
transferred to new
installations. The ten-year
limited warranty is for the life
of the device and is not voided
if taken off one engine and
placed on another.
How does the Rentar Fuel
Catalyst protect my engine and
prolong engine life?
Approximately 30% of the exhaust
(fuel soot) from the combustion
chamber is trapped in the
engine's crankcase. This
contaminates the oil in the
engine, and is the main cause of
oil breakdown. The main cause of
oil breakdown comes from running
at high temperature and
friction. The Rentar device
does not cause the oil to run at
a hotter temperature. The
Rentar Fuel Catalyst improves
the combustion process thus
allowing more complete burning
of the fuel. Oil analysis tests
have proven that by using the
Rentar Fuel Catalyst, the fuel
soot levels have been
substantially reduced; thus
keeping the oil cleaner.
On what engine does the Rentar
Fuel Catalyst work best?
Noteworthy improvements occur
both on newer electronically
injected engines as well as
older mechanically injected
engines. The more significant
improvements have occurred on
older engines.
Is The Rentar Fuel Catalyst
registered with the CARB
(California Air
Resources Board)?
The Air Resource Board issued an
executive order permitting the
Rentar Fuel Catalyst to be
installed on California vehicles
(#D394-2).
Does The Rentar Fuel Catalyst
need to be serviced?
No.
Once the catalyst is properly
installed there is no further
maintenance required. A periodic
inspection of fuel lines is
recommended along with a visual
inspection to make sure it
remains securely mounted and is
not rubbing or vibrating against
any metal edges on the engine.
Also, the fittings should be
checked for tightness and leaks.
What effect does The Rentar Fuel
Catalyst have on emissions?
The Rentar Fuel Catalyst has
been tested at EPA and CARB
certified labs and has shown a
significant reduction of the
following emissions: CO, CO2,
THC, NOx, and Particulate Matter
as well as opacity.
Does The Rentar Fuel Catalyst
work on all engines?
The Rentar Fuel Catalyst has a
different effect on different
engines. The older, less
efficient the engine is, the
more dramatic the results.
How often do I need to inspect
The Rentar Fuel Catalyst once it
is installed?
We recommend that you visually
inspect the installation every
90 days.
How soon will I see results?
The Rentar Fuel Catalyst will
start working as soon as it is
installed, but will not show
maximum benefits until the
engine has operated for
approximately 70-100 hours under
load; this is because the fuel
system needs to have the
Rentar's catalyzed treated fuel
running through the fuel
system's injectors for some time
to clean out varnishes, gum
deposits and built-up carbon in
the cylinders that have
accumulated over time from
untreated fuel.
Aren't all fuel savers or
conditioners alike?
No.
Other devices or fuel additive
products may have some benefits
but the Rentar Fuel Catalyst
produces significant results
without the potential
disadvantages that can come from
the use of other products. For
example, fuel additives can
result in pollution of
groundwater, and post combustion
devices can result in the
“clogging” of filters, which
require maintenance. Also the
Rentar catalyst is a one-time
cost compared to post combustion
devices which are much more
expensive and have an ongoing
cost of replacement and
additives which force an
operator to incur an ongoing
expense.
How does The Rentar Fuel
Catalyst give an engine more
power?
By conditioning the fuel to
produce a more energetic mixture
of fuel components which enables
the fuel to burn more completely
and combust with more energy,
there is a more efficient
combustion process with added
energy which increases fuel
economy and reduces harmful
emissions.
How Does The Rentar Fuel
Catalyst reduce smoke?
Since smoke is unburned fuel,
the Rentar Fuel Catalyst will
condition the fuel to burn more
completely.
How does The Rentar Fuel
Catalyst keep my injectors
cleaner?
The Rentar Fuel Catalyst breaks
the fuel down into exceedingly
fine mist by reducing surface
tension of the fuel, which
results in improved fuel burn
because of increased surface
area of the fuel. This improved
burn is constantly working to
clean the fuel line and
injectors.
How long does it take for The
Rentar Fuel Catalyst to clean
out my injectors?
It depends on the amount of
buildup from lacquers, varnish
deposits and sludge that has
accumulated over time. Normally,
approximately, 60 hours of
normal operation under load will
significantly clean injectors,
200 to 300 hours of operation
will then generally achieve the
maximum clean-out benefit. After
that the Rentar Fuel Catalyst
will continue to keep injectors
and the fuel system constantly
clean while the engine is
running.
Can I paint or polish The Rentar
Fuel Catalyst?
No. The Rentar catalyst
must "breathe." The pores in the
metal housing need to be left
open to breathe, or the Rentar
Fuel Catalyst will not work as
well.
Can The Rentar Fuel Catalyst be
installed vertically instead of
horizontally?
It is recommended to always
install the Rentar horizontally
when possible. However, some
installations may require some
vertical angle of degree, which
is permissible, as long as the
Rentar is slanted in a downward
angle towards the injector port