Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on March 31, 1986.
As of Tuesday, June 25th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
No. ATS 6.9L/7.3L1983-1987 model-year Ford Motor Company heavy-duty vehicles powered by a 6.9L Navistar International heavy-duty diesel engine and 1988 model-year Ford Motor Company heavy-duty vehicles powered by a 7.3L Navistar International heavy-duty diesel engine.Modifications to the OEM emission-related parts due to the installation of the turbocharger include replacement of air cleaner assembly, replacement of the OEM exhaust system with a 3" diameter exhaust system, and replacement of the OEM crankcase depression regulator with parts included in the kit.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-171-2
  • Executive Order 171-2 / D171-2
  • ARB # D-171-2
  • Executive Order No: D-171-2
  • C.A.R.B. No. D-171-2
  • Resolution D-171-2
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-171-2 PDF

D-171-2 Document:



                                             ~——
                                                                (Page 1 of 2)
                                 State of California
                                 AIR RESOURCES BOARD

                              EXECUTIVE ORDER D—171—2
                     Relating to Exemptions under Section 27156
                               .of the Vehicle Code



                           ADVANCED TURBO SYSTEMS, INC.
                     TURBOCHARGER KIT MODEL NO. ATS 6.9L/7.3L


  Pursuant to the authority vested in the Air Resources Board by Section 27156
  of the Vehicle Code; and

  Pursuant to the authority vested in the undersigned by Sections 39515 and
  39516 of the Health and Safety Code and Executive Order G—45—5;

  IT iS ORDERED AND RESOLVED: That the installation of the add—on
  turbocharger kit Model No. ATS 6.9L/7.3L manufactured by Advanced Turbo
  Systems, inc. of 5919 South 350 West, Murray, Utah 84107, has been found not
  to reduce the effectiveness of required motor vehicle pollution control
  devices and, thersfore, is exempt from the prohiblitions of Section 27156 of
  the Vehicle Gode for 1983—1987 model—year Ford Motor Company heavy—duty
  vehicles powered by a §.9L Navistar International heavy—duty diessi engine
  and 1988 model—year Ford Motor Company heavy—duty vehicles powered by a
  7.3L Navistar International heavy—duty diesei engine.

.Aodlflcatlons to the OEM emission—related parts due to the       installation of
  the turbocharger include replacement of alr cleaner assembly, replacement of
  the OEM exhaust system with a 3" diameter exhaust system,and replacement of
  the OEM crankcase depression regulator with parts Included in the kit.

  This Executive Order is valld provided that'instaltatlon Instrucflons for
  this device will not recommend tuning the vehlcle to spactflcatlons
  different from those submitted by the device manufacturer.

  Changes made to the design or operating conditions of the device, as .
  exempted by the Alr Resources Board, that adversely affect the performance
  of a vehicle‘s pollution control system shall Invalidate this Executive
  Order .

  Marketing of this device using an [dentification other than that shown in
  this Executive Order or marketing of this device for an application other
  than those listed in this Executive Order shall be prohlblited unless prior
  approval   is obtained from the Air Resources Board.   Exemption of a kit shall
  not be construed as an exemption to sell, offer for sale, or advertise any
  component of a kit as an   individual device.

  This Executive Order does not constitute any opinion as to the effect that
  the use of this device may have on any warranty either expressed or implled
  by the vehicle manufacturer.


ADVANCED TURBO systTEMS,   inc.                    EXECUTIVE ORDER D—171—2
     (Page 2 of 2)



THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION,
APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF ANY
CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED
BENEFITS OF THE ADVANCED TURBO SYSTEMS, INC. TURBOCHARGER KIT MODEL NO. ATS
6.91./7.3L.

No clalm of any kind, such as "Approved by Alr Resources Board" may be made
with respect to the action taken herein in any advertising or other oral or
written communication.

Section 17500 of the Business and Professions Code makes untrue or
misleading advertising unlawful, and Section 17534 makes violation
punishable as a misdemeanor.

Section 43644 of the Health and Safety Code provides as follows:

     "43644.   (a)  No person shall Iinstall, sell, offer for sale, or
     advertise, or, except In an application to the state board for
     certificatlon of a device, represent, any device as a motor
     vehicle pollution control device for use on any used motor
     vehlicle unless that device has been certified by the state board.
     No person shall seil, offer for sale, advertise, or represent any
     motor vehlicis pollution control device as a certifled device
     which, In fact, is not a certified device.   Any violation of this
     subdivision is a misdemeanor."                       o
                                                                             tss   uies on etniien ssm n mt
Any apparent violation of the condlitions of this Executive Ordef‘wlll bé
submltted to the Attorney General of California for such action as he deems
advisable.                            c       —                    '

Executive Order D—171—1, dated December 17, 1988,    is superseded and of no
further force and effect.                                                  >

Executed at E! Monte, California, this _:ié£2£;day of March, 1988.




                                           . 0. Drachand, Chief
                                          Moblle Source Division


                      State of California
                      AIR RESOURCES BOARD




EVALUATION OF ADVANCED TURBO SYSTEMS, INC. ADD—ON TURBOCHARGER KiT
 MODEL NO. ATS 6.9L/7.3L FOR INSTALLATION IN 1983—1987 MODEL—YEAR
   FORD MOTOR COMPANY HEAYY—DUTY VEHICLES POWERED BY A 6.9 LITER
        NAVISTAR INTERNATIONAL HEAVY—DUTY DIESEL ENGINE AND
 1988 MODEL—YEAR FORD MOTOR COMPANY HEAVY—DUTY VEHICLES POWERED BY
    A 7.3 LITER NAVISTAR INTERNATIONAL HEAVY—DUTY DIESEL ENGINE
        FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE
          SECTION 27156 IN ACCORDANCE WITH SECTION 2222,
         TITLE 13, OF THE CALIFORNIA ADMINISTRATIVE CODE




                           March 1988


     EVALUATION OF ADVANCED TURBO SYSTEMS, INC. ADD—ON TURBOCHARGER KIT
      MODEL NO. ATS 6.9L/7.3L FOR INSTALLATION IN 1983—1987 MODEL—YEAR
        FORD MOTOR COMPANY HEAVY—DUTY VEHICLES POWERED BY A 6.9 L[TER
             NAVISTAR INTERNATIONAL HEAVY—DUTY DIESEL ENGINE AND
      1988 MODEL—YEAR FORD MOTOR COMPANY HEAVY—DUTY VEHICLES POWERED BY
         A 7.3 LITER NAVISTAR INTERNATIONAL HEAVY—DUTY DIESEL ENGINE
             FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE
               SECTION 27156 IN ACCORDANCE WITH SECTION 2222,
              TITLE 13, OF THE CALIFORNIA ADMINISTRATIVE cope




                                      by
                           Mobile Source Division

                            State of California
                            AIR RESOURCES BOARD
                            9528 Telstar Avenue
                            El Monte, CA   91731




(This report has been reviewed by the staff of the California Air Resources
Board and approved for publication.   Approval does not signify that the
contents necessarily reflect the views and policies of the Air Resources
Board, nor does mention of trade names or commercial   products constitute
endorsement or recommendation for use.)


             RGER   T    P          PERATION




APPEND 1 X

      1NSTALLAT ION INSTRUCT IONS


       Advanced Turbo Systems,      Inc.   (ATS) has requested an update to

Executive Order D—171—1, which exempts their turbocharger kit mode!             No. ATS

6.9L for 1983—1987 model—year Ford Motor Company heavy—duty vehicles powered

by a 6.9    liter Navistar   International    heavy—duty diesel! engine.     They have

requested that the exemption be updated to          include the 1988 model—year Ford

Motor Company heavy—duty vehicles powered by a 7.3          [iter Navistar

International    heavy—duty diesel engine.

       Based on the following:        (1) the fact that the kit appiicable to 1988

model—year 7.3    liter Navistar   Internationa i   heavy—duty diesel engine     is

identical   to the exempted kit;    (2) the fact that the 1988 7.3     liter Navistar

International heavy—duty diese! engine         is a replacement engine for the 1987

6.9 |iter Navistar    International   heavy—duty diese! engine and that both

engines have similar designs;      (3) the test data from previous comparative

exhaust emisslon tests and back—to—back crankcase pressure tests performed

for exempting the kit; and (4) that the engine design complies with the

carryover criteria as outlined in EPA‘s Advisory Circulars 17F and 208, the

staff believes that the add—on turbocharger kit will have no adverse effect

on the engines for whicnféiemption update is requested.

       The staff recommends that ATS be granted an update as requested, and
 a4
the Executive Order D—171—2 be      issued.


APPEND lX

      INSTALLAT ION INSTRUCT IONS


EVALUATION OF ADVANCED TURBO SYSTEMS, INC. ADD—ON TURBOCHARGER KIT MODEL NO.
ATS 6.9L/7.3L FOR INSTALLATION IN 1983—1987 MODEL—YEAR FORD MOTOR COMPANY
HEAVY—DUTY VEHICLES POWERED BY A 6.9 LITER NAVISTAR INTERNATIONAL HEAVY—DUTY
DIESEL ENGINE AND 1988 MODEL—YEAR FORD MOTOR COMPANY HEAVY—DUTY VEHICLES
POWERED BY A 7.3 LITER NAVISTAR INTERNATIONAL HEAVY—DUTY DIESEL ENGINE FOR
EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE SECTION 27156 IN ACCORDANCE
WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA ADMINISTRATIVE CODE




J .       1NTRODUCT

          Advanced Turbo Systems,    Inc. of 5919 South 350 West, Murray, UT

84107, has requested an update to the existing Air Resources Board Executive

Order   (E.0.) D—171—1 dated December 17, 1988.       E.0. D—171—1 exempted the ATS

turbocharger kit mode!     No. ATS 6.9L from the prohlbitions in Vehicle Code

Section 27156 for 1983—1987 model—year Ford Motor Company heavy—duty

vehicles powered by a 6.9 liter Navistar       international    heavy—duty diesel

engine.      The applicant has requested that the exemption be updated to

 include the 1988 model—year Ford Motor Company heavy—duty vehicles powered

by a 7.3 liter Navistar      International heavy—duty diese! engine.

 11.      conckusion                                             v
          Based on the following:     (1) the fact that the kit applicable to 1988

model—year 7.3     liter Navistar   International   heavy—duty diesel engine is

 identical    to the exempted kit; (2) the fact that the 1988 7.3 liter Navistar

 International    heavy—duty diesel engine is a replacement engine for the 1987

6.9    liter Navistar   International heavy—duty diesel engine and that both

engines have similar designs;       (3) the test data from previous comparative

exhaust emission tests and back—to—back crankcase pressure tests performed

for exempting the kit; and (4) that the engine design complies with the

carriéver criteria as outlined in EPA‘s Advisory Circulars 17F and 208B, the

staff believes that the add—on turbocharger kit will have no adverse effect
                        d
                        L
on the engines for whlcq«exemption update       is requested.


111.   RECOMMENDATIONS

       The staff recommends that ATS be granted an update as requested, and
              L
that Executive Order D—171—2 be         Issued.

 1v.   TURBOCHARGERKITDESCRIPTIONANDOPERATION

       The purpose of the ATS turbocharger kit             is to    increase the power

output of the engine by         Increasing    its volumetric efficiency.          This   is

accomplished by compressing the         intake charge to pressures above that of the

atmosphere.       The   increased pressure allows a greater charge density to enter

the combustion chamber providing more oxygen for combustion.                  The maximum

fuel delivery      is slightly    Increased    in order to maintain proper air—fue!

ratios with the         increased air flow from the turbocharger when         It    is

providing positive manifold pressure (boost}.                                                   ‘

        The major components of the kit           include a 0.96 A/R ratio Rotomaster

(AiResearch) mode!        No. TO4B, custom intake and exhaust tubing, air cleaner

assembly, brackets, hoses and the hardware necessary to complete the

 Installation.      The OEM crankcase depression reguiator           is removed and

replaced with tubing,        flttings with a 0.375" orifice suppiied in the kit.

A complete air cleaner assembly is supplled with the system to replace the

stock alr cleaner assembly.         No other emission—related components are

removed or disconnected when the turbocharger kit              is   Iinstalled.

        Maximum positive manifold pressure           is   [imited to 12 psi       by the size

‘of the turbine and the compressor.           The maximum engine speed is regulated by

the OEM fue!      injection governor which       is not modified by the instailation of

the kit.   Therefore, by controlling maximum engine speed, maximum turbine

speed and corresponding boost pressures are also controlled.

       D1SCUSS!ON

       ATS add—on turbocharger kit mode! No. ATS 6.9L                is designed for

                                       _2~


installation on 1983—1987 model—year Ford Motor Company vehicles powered by

a 6.9 liter Navistar      International    heavy—duty diese!   engine.    The exemption

was granted on the basis that the effectiveness of the vehicle‘s poliution

control system was not reduced.       Evaluation consisted of comparative

(baseline versus turbocharged) steady state tests and back—to—back crankcase

—pressure tests.

          The applicant   is making available the add—on turbocharger kit mode!

No. ATS 6.9L/7.3L for the 1988 model—year Ford Motor Company vehicles

powered by a 7.3 liter Navistar International heavy—duty diesel engine.                  The

applicant claims that no modifications to the kit are needed              In order to be

compatible with the 1988 mode!s.          They have requested that the exemption be

updated to include these 1988 model—year vehicles.

          In response to the applicant‘s request, the staff compared the engine

design of 1987 and 1988 model—year Ford Motor Company vehiclies powered by a

6.9 or a 7.3 liter Navistar      international    heavy—duty diesel engine.

Certification documents and correspondence from Navistar           international    to

the ARB    indicated that the 1988 model—year 7.3 liter engine           is the

replacement engine for the 1987 model—year 6.9 liter engine.               The staff also

noted that the engine designs of both 1?87 and 1988 engines are similar.

          Because the data on a 1986 6.9L ;fi;zflvehlcle showed that the

emissions were not adversely affected when the turbocharger kit was

 Installed;%}; back—to—back crankcase pressure tests on five vehicles did not

show significant effect on crankcase pressure and that the engine design

complies with the carr&iover criteria as outlined          in EPA‘s Advisory

circulars 17F and 20B, the add—on turbocharger kit will           have no adverse

effect on the 1988 model—year Ford Motor Company heavy—duty vehicles powered

by a 7.3C/M:;}star    International heavy—duty diese! engine.            No additional

testing was required or performed for updating the exemption as requested.
                                          —3—


                                                                       APPENDLIX
                                 ADVANCED TURHO SYSTEMS

                                  6,.9/7.3 LITER DIESEL

                                 INSTALLATION cx2CZDURE



 CONGRAN LATIONS!    You have ivst purchased the finest turbo system available
 for the 6.9 and 7.3 liter diesel engine. The following information will assist
 you, in the installation of your ATS turbo system.


 INPORTAJIT:   It is very iuportanc to read oll the instructions curc{ully prior
 ro any iiostallation of your turbe    systcml Nommal mechanical and salety
 provwedures should be followed.



 1.    Disconnect both batteries at the negative tenninals.

 2.    Remeve air cleaner and air cleaner canister.

 3.    Remove 1/2" nut holding wire lume clamp to rear engine lifting bracket.
 4. . Reove rear ono“ne lifting bracket. Instsll shorter cap serews (ite. #30)
      prudeeci in kit.       *
      Note: Steps 5—7 on‘ly need to be followed, if your vehicle is a 1983 or
. 1994model.

       Romove the funl resurn line which was previously held in position with
      the rear e     Mting brac        bolit. Remove this line enly fran the
      passuger side rear injector.

6.    Cut an 1/8" out of the retum line, bet. +a the t}urc ind fourth injector
      or the right bank ‘passenger side). Install the "T" firting (itea #27)
       upplied in tue kil. Connect the fuol retur.s wine whicu was rencued from
          reat injector to this "T" fitting in such s mamer that the fuel
      lime wiil lHie on the intake manifold directly beaind the air intake.

7..   Install fuel returm cap (item #28) suppiled in the kit, on the rear injeecer
      whore the fuel return line was previousl« locared.


8.    Vehnicles with a sound insuleting blanket covermg the firewall, must
      out and remove one half or approxtmately 14" of the passenger sice sound
      insulating blanket.

9.    Uiing an 1/8" drill bit, relocate the      vacuimm block on the firewall above
      the right bank valve cover (nassenger sico), three inches rore to the
      pas » nger side and three inches higher than the original location.

      Using a prybar or a picce of 2" pipe, bend &« 1iip on th«      irewall
        arword directly behird the right    hank (pas     x             , where the
      heat shield is riviced ro the ‘)uuy


              —.

 11.    On vehicles with automatic transmission, remove the 1/2" cap screw
        holding dipstick tube and vacuum line to bell housirlg. Remove dipstick
        tube. Move vacuum line to drivers side and secure with 1/2" cap screw
        on drivers side. Reinstall 1/2" cap scerew on passenger side.

 12.    Remove the anti—depression valve from the rear of the intake manifold.

 13.    On 1987 and newer model vehicles, tie wrap wire lime near passenger
        side rear injector to large yellow wires on senso located behind intake
       manifold.

 14.    Lubricate and install O—ring seals (item #19 & 23   in oil drain casting
        (item #10)

 15. Using 5/16" X 1 1/4" USS cap scerews (item #30) and lock washers (item #40)
       supplied in kit. Install oil drain casting in valley pan grommet and bolt
       to back of intske menifold, where the anti—depression valve was previously
       located.

16.    Route throttle and cruise control cables under automatic transmission
       kick—down linkage and route cables behind oil drain casting and in front
       of control relay box bolted to rear of intake manifold.

       Remove drivers side valve cover. Using an 1 1/4" hole saw, cut a hole in
       the center of the rear most flat round portion of the valve cover.       2iIfil_

       Instali molded vent hose (item #14) into valve cover and reinstallgvalve
       cover on engine.

       Install heat shield (item £9), using 5/16" X 1/2" USS cap screw (item #32)
       and washer (item £40).

       At this time, check to make sure a 1/8" pipe plug (item £29) or a manifold
       pressure adapter is tightened into the pressure chamber (item #4).

       Install 90 degree adapter fitting (itemf25) in the female pipe threaded
       portion of the turbo bearing housing (item #1). When tight, fitting should
       be facing the radiator.

22.    Lubricate and install the 2" I.D. O—ring seal (item #21) and install into
       pressure chamber. With O—ring seal lubricated, push pressure chamber over
       turbo compressor housing discharge.

23.    Lubricate and install large O—ring seal (item #22) over cleaned intake
       manifold.                                                     .

24.    Install turbo assembly onto oil drain casting , using 3/8" SAE nuts
       (item #37) and lock washers (item #39). With turbo assembly tightened into
       position, install 3/8" X 2 1/2" USS cap serew with seal washer (item #30,42)
       into pressure chamber and tighten into intake manifold.


       Iustall oil supply line (item #13) to turbo oil fitting (item #25) and
       righten. Route oil supply line through the clearance area between the
      compressor discharge and the oil drain casting and route oil line down
      back side of engine on drivers side.

      Renove and save 5/16" X 1/2" cap screws which secure the throttle linkage
      bracket to the front of intake manifold. Install 5/16" X 1 1/4" studs
       (itermr #34) into manifold where cap screws were just removed.

      Inscall air filter support bracket (item #11) in front of throttle
S
 s




      linkange bracket with long portion of filter support bracket running
      horizontal from front of intake manifold towards radiator.

28.   Remove stock hose from anti—depression valve and secure valve to air
      filter base casting (item #4), using 5/16" X 1/2" cap serews which
      previously held throttle bracket to intake manifold.
      Note: Be sure to use original rubber sealing gasket between valve and
      air filter base casting.

29.   Install 5/16" X 1" studs (item #35) in air filter base casting.
30.   Install air filter restriction indicator (item £18) in air filter base
      casting using 1/8" NPT coupler (item #34) supplied in kit.
31.   Lubricate and install O—ring seal (item #20) in air filter base casting.
      With O—ring seal lubricated, push air filter base casting assembly over
      turbo compressor inlet and locate air filter base against angle support
      bracket. Sccure air filter base to angle support bracket, using 5/16"
      SAE hex lock nuts (item #41) supplied in kit.

      Install air filter element (item #$17) into air filter cover casting (item #6)
      and clip onto air filter base casting.

      Install fresh air inlet hose to air filter cover and grill fixture.
      Note; 19884 and newer year models have the fresh air inlet fixture
      iccated above the grill, just under the hood. Vehicles having this
      arrangement should remove the fresh air inlet fixture and hose and
      install the older type, part number E3TA—9C675—BE and hose E3TA—98676—BB.
      This will prevent drawing the hood insulation into the air filter element.

      Remove entire exhaust system, retaining stock exhaust hangers.

35.   Remove 1/8" pipe plug from engine block (oil galley). Location is directly
      behind drivers side exhaust manifold flange and in line with transmission
      mounting bolt.

36.   Install 1/8" oil adapter elbow (item #26) into oil galley where plug was
      removed and tighten elbow to 1:00 O‘clock position.

37.   Connect turbo oil supply line to elbow and tighten.


38.   On automatic transmissions, it is neeessary to cut off michined locating
      boss, located above the starter well, between the two transmission bolts.
      Cut flush with transmission adapter plate.


@
      Note: This is most easily done with a power hacksaw.

      Install optional automatic transmission dipstick tube (item #12) using
      transnission mounting bolt to secure dipstick tube.
      Note: Lubricate original O—ring seal before installing dipstick tube.

40.   Ou vehicles with five speced manual transmission, it may be necessary to
      cut locating boss at an angle to give clearance for the final exhaust
      pipe (item #8).

41.   Remove exhaust flange studs from right bank (passenger side) exhaust
      manifold. Install these studs into   ‘Y‘ collector casting (item #3).

42.   Install 7/16" X 2 1/2" USS studs (item #33) in right bank (passenger side)—
      exhaust manifold where original studs were removed.

43.   Install ‘Y¥‘ collector casting over studs in right bank (passenger side)
      exhaust manifold. Secure ‘Y‘ collector casting using flst washers (item #38)
      and 7/16" nuts (item #36) supplied in kit.
      Note: Tighten nuts evenly to maintain flange semetry.

      Install crossover feed pipe assembly (item #7) using original nuts, and
      2 1/4" saddle clamp (item #44) supplied in kit.

45.   Iustall 3" final exhaust pipe using spring (item #43) to secure pipe into
      position.

46.   Install optional 3" mandrel bent exhaust system at this time.
      Note: If the ATS optional exhaust system is not used, then a free flowing
      3" exhaust with a Walker muffler part number 21468 or equivelent should
      be used.

      To realize the full benefit from turbocharging your diesel engine, the
      injection pump maximum fuel delivery should be increased. This should
      be done at this time. For instructions as to increase the fuel delivery,
      read INJECTION PUMP FUEL SETTING PROCEDURE.                         .

      Reconncet both battery cables.

      Start ougine and check for any exhuust leaks, oil leaks, or air leaks.
      CAUTION: Never rev engine until oil pressure is obtained at the turbo.

      Install prometer kit (item #15) supplied in turbo kit.




                                           s


                          INJECTION PUMP FUEL SETTING
                                          PROCEDURE
To realize the benefit from turbocharging your diesel engine, the injection pump maximum fuel delivery
should be increased. This is done by removing the timing cover on the passenger side of the injection
pump. Remove the top capscrew of the timing cover by using a 4" wrench. Loosen the bottom capscrew
and let the timing cover plate rotate to the bottom with the rubber gasket. Now rotate the engine using a
15/16" socket and ratchet on the alternator belt pulley nut until the allen head leaf spring screw is
centered in the opening. Using a 5/32" allen wrench, turn the allen head screw inward (clockwise) 4   9f a
turn. The injection pump output will determine maximum exhaust temperature.

CAUTION: Never exceed 1150 degrees exhaust temperature.



                                        MAINTENANCE
.SIVE YOUR ENGINE A GOOD WARM—UP PERIOD BEFORE YOU WORK YOUR ENGINE HARD.
2. GIVE YOUR ENGINE A COOL—DOWN PERIOD AFTER WORKING THE ENGINE. LET iT COOL TO AT
   LEAST 300 DEGREES FAHRENHEIT
3. CHANGE OfL AT INTERVALS OF NOT MORE THAN 2,500 MILES. CHANGE OIL FILTER WITH
   EACH OIL CHANGE.
4. KEEP AIR FILTER ELEMENTS CLEAN. WHEN THE ELEMENT GETS DIRTY, CHANGE IT! A DIRTY
   AIR CLEANER ELEMENT WILL CAUSE EXCESSIVE EXHAUST TEMPERATURE AND EXCESSIVE
   OIL CONSUMPTION.
5. KEEP FUEL FILTERS CLEAN. DRAIN WATER FROM FUEL REGULARLY. CLEAN DIESEL FUEL
   WILL ASSURE LONG TROUBLE—FREE INJECTION PUMP AND INJECTOR LIFE.
6. NEVER REV YOUR ENGINE UNTIL OIL PRESSURE IS OBTAINED!
.   NEVER SHUT OFF YOUR ENGINE AFTER WORKING IT HARD WITHOUT GIVING YOUR ENGINE A
    COOL—DOWN PERIOD!



Document Created: 2005-09-01 12:39:41
Document Modified: 2005-09-01 12:39:41

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