6.7L DODGE CUMMINS TURBO DIESEL
Diesel Oils and Oil Filter
recommendations are to change your oil to the AMSOIL 15W-40 Synthetic Heavy Duty Diesel Oil Part
#AME-04 (4 gallons). Cases of quarts or 5 gallons are also available. The 15W-40 AME is a
25,000-mile/1-year drain oil in the older 5.9L Cummins, however in the 6.7L Cummins with Diesel
Particulate Filters on the exhaust we are recommending to change the oil at manufacturer’s
specifications unless you are performing oil analysis. Use the AMSOIL EAO-80 (EA-1 Filter) Absolute
Efficiency Oil Filter which has a change interval of 25,000-mile/1-year intervals, however on the
6.7L it should be changed when you change the oil at manf specs.
Please note that
Dodge Cummins engines with a 6.7L, EGR system and Diesel Particulate Filter on the exhaust system,
as per Cummins specifications, permit the use of the AMSOIL Synthetic 5W-40 Premium API CJ-4 Diesel
Oil or the CI-4 Plus formula oil, 15W-40 AME or 5W-30 HDD. The change interval recommended is for
the longest service interval established by the engine, vehicle or equipment manufacturer. Drain
intervals may be extended based on oil analysis.
Note : On all 2007 and newer models you must use the Amsoil
Synthetic 5W-40 Premium API CJ-4 Diesel oil (Product Code: DEO) and change the oil (regardless of
filter used) at the manufacturer’s longest recommended change interval.
AMSOIL 15W-40 Synthetic Heavy
Duty Diesel Oil
Series 3000 5W-30 Synthetic
Heavy Duty Diesel Oil
AMSOIL Synthetic 5W-40 Premium API
CJ-4 Diesel Oil*
Use the 5 Gallon size ATF-TP (CA- CASE)
Synthetic Transmission Fluid at a cost of $125.00 (vs $171.50 retail). Before installing, change
the transmission filter and gasket. The AMSOIL ATF change interval specification is three times
longer than manufacturer's recommendations with petroleum ATF. Use a transmission fluid exchange
machine to install AMSOIL ATF in the automatic transmission.
Torque-Drive™ Synthetic Automatic Transmission Fluid
Synthetic Universal Automatic Transmission
5-speed manual transmissions use AMSOIL
MTG Synthetic Manual Transmission Fluid, and 6-speed transmissions use AMSOIL MTF Synthetic Manual
Synthetic Manual Transmission and Transaxle
Gear Lube 75W-90 API GL-4 (MTG)
Synthetic Manual Synchromesh Transmission Fluid
Use the Severe Gear 75W-140 Synthetic
Gear Lube in the front and rear axles, or you can also use the Severe Gear 75W-140 in the rear and
the Severe Gear 75W-90 in the front or 75W-90 in both front and rear for newer models. Capacities
are in your owner's manual. You will need about 8 quarts to do both the front and rear. I recommend
Loctite "The Right Stuff" silicone for re-sealing the differential covers, available in auto parts
stores and NAPA. If you have a limited slip differential, in most cases, you will not need to add
friction modifier. In some cases, if you do hear chatter on turns, and then you will need to
install a bottle of AMSOIL Slip-Lock friction modifier.
SEVERE GEAR® 75W-90 (SVG)
SEVERE GEAR® 75W-110
SEVERE GEAR® 75W-140 (SVO)
Use the Synthetic Heavy Duty Grease
Part #GHD-CR for the steering joints grease fittings and pitman arm. The ball joints are
non-greaseable. When they eventually wear out, make sure to replace them with NAPA's Fleet Series
greaseable ball joints. The GHD has moly in it which is especially good for impact loading as
encountered in suspension components. When one of your driveshaft u-joints wears out, I recommend
replacing it with a greaseable Dana Spicer u-joint. The factory u-joints on the front axle shafts,
front and rear driveshafts are all non-greaseable. Use the AMSOIL GHD synthetic grease.
Synthetic Heavy-Duty Grease, NLGI #2, GC/LB
Concentrate Performance Fuel Additive
AMSOIL Diesel Concentrate (ADF)
provides maximum diesel operating efficiency. It compensates for the variances in quality of
different fuels (including bio-diesel) and the deficiencies of today's Ultra Low Sulfur Diesel fuel
(ULSD) for better engine operation. New engine technology, tighter tolerances and emissions
regulations require high quality diesel fuel for long-term engine operations. AMSOIL Diesel
Concentrate improves diesel fuel quality to exceed today's stringent performance requirements.
AMSOIL Diesel Concentrate extends equipment life, lowers operating costs and improves diesel
performance. AMSOIL Diesel Concentrate provides the following benefits:
- Improves Fuel Economy and Restores
- Lubricates Fuel Pump and
Injectors: ULSD has significantly reduced lubricity - a critical property in controlling wear
in fuel pumps and injectors. AMSOIL Diesel Concentrate adds back in all the lubricity
properties needed and more.
- Reduces Cylinder wear. Retains
Engine Oil TBN Longer
- Minimizes Soot Loading
- Stabilizes Fuel
- Improves Water
Use one ounce of AMSOIL
Diesel Concentrate to five gallons of fuel
High fuel prices are increasing
operating costs for everyone. AMSOIL Diesel Concentrate has proven in industry standard tests to
improve fuel economy in used diesel engines by up to five percent. At $3.00 per gallon for diesel
fuel, even a modest three percent improvement in fuel economy equals a savings of $0.09 per gallon.
With a treat rate of one oz. of AMSOIL Diesel Concentrate to five gallons of fuel, at U.S.
Preferred Customer/Dealer prices the net treat cost of AMSOIL ADF is $0.06 per gallon, bringing the
total savings to $0.03 per gallon and negating the cost of AMSOIL Diesel Concentrate
AMSOIL Diesel Cold Flow Improver
and Cetane Boost
Combining AMSOIL Diesel Concentrate
with a cold flow improvement property is not cost effective in the summer months, or to AMSOIL
customers who live in the south. To keep costs down for Dealers and customers, AMSOIL Diesel
Concentrate no longer includes a cold flow improver. Instead, AMSOIL provides new AMSOIL Diesel
Cold Flow Improver (DFF) for low-temperature applications below 40°F. Recommended mix ratio is one
ounce of additive per five gallons of fuel. AMSOIL Cetane Boost will raise cetane levels up to 7
points for improved performance and fuel economy.
This should get you started. Do not
become overwhelmed by all there is to do. Just do a little bit at a time and eventually you will
have everything converted over. Once you do, you will have a better performing and protected truck.
Please contact me if you have any questions. I am here to assist you in using the very best AMSOIL
Synthetic Lubricants and Filtration Systems for your vehicle.
Diesel Concentrate Performance Fuel Additive (ADF)
Diesel Cold Flow Improver (ACF)
Aftermarket Air Intake System
Air-Intake System Design
Cold air intake systems serve several important functions. Primarily, they are used to increase the
amount of oxygen available to the engine, increasing power. Because cool air has greater density
than hot air, aftermarket intakes improve combustion of fuel by capturing cooler air from outside
the engine compartment. In addition, an aftermarket air intake system increases the diameter of the
intake as compared to the original equipment, increasing air flow into the engine and making more
oxygen available during the combustion process. For further information please visit the
Injen/Amsoil Air-Intake Systems page.
Already own an after market air-intake system and need a replacement filter element? They can be found here.
2003-2007 Dodge Ram 2500, 3500, 5.9L
*These results are representative of
the vehicles tested in support of the development of the Injen/AMSOIL Cold Air Intakes. Performance
may vary from vehicle to vehicle due to equipment and driving conditions.
This should get you started. Do not become
overwhelmed by all there is to do. Just do a little bit at a time and eventually you will have
everything converted over. Once you do, you will have a better performing and protected truck.
Please contact me if you have any questions. I am here to
assist you in using the very best AMSOIL Synthetic Lubricants and Filtration Systems for your