Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on April 17, 1978.
As of Wednesday, March 19th, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Models
1978 and older gasoline powered vehicles

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-80
  • Executive Order 80 / D80
  • ARB # D-80
  • Executive Order No: D-80
  • C.A.R.B. No. D-80
  • Resolution D-80
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-80 PDF

D-80 Document:

CARB_D-80

State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—80 Relating to Exemptions under Section 27156 of the Vehicle Code MILEAGE MINDER CO. "MILEAGE MINDER" DEVICE Pursuant to the author1ty vested in the Air Resources Board by Section 27156 of the Vehicle Code; and Pursuant to the authority vested in the undersigned by Section 39515 of the Health and Safety Code and Executive Order G—30A; IT IS ORDERED AND RESOLYED: ~That the installation of the ."Mileage Minder" device manufactured by Mileage Minder Co., 2999 Mission Street, San Francisco, CA <©94110, has been found to not reduce the effectiveness of required motor veh1c1e pollution—control devices and, therefore, is exempt from the prohibitions of Section 27156 of the Veh1c1e Code for installation on 1978 and older gasoline—powered vehicles. This Executive Order is valid provided that installation instructions for this device will not recommend tuning the vehicle to specifications different from those listed by the vehicle manufacturer. Changes made to the design or operating conditions ‘of the device, as exempted by the Air Resources Board, that adversely affect the per— formance of: a vehicle‘s pollution contro] system shall invalidate this Executive Order. Marketing of this device using an identification 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 proh1b1ted unless prior approval is obtained from the Air Resources Board. This Executive Order does not constitute any op1n1on as to the éeffect that the use of this device may have on any warranty e1ther expressed or implied by the vehicle manufacturer. 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 "MILEAGE MINDER" DEVICE.~~ No claim of any kind, such as "Approved by Air Resources Board" may be made with respect to the action taken herein in any advertising or other oral or written communication.

—MILEAGE MINDER CO. EXECUTIVE ORDER D—80 (Page 2 of 2) Section 17500 of the Business and Professions Code makes untrue or mis— leading advertising unlawful, and Section 17534 makes violation punishable as a misdemeanor. j Section 43644 of the Heailth and Safety Code provides as follows: "43644: (a) No person shall install, sell, offer for sale, or | advertise, or, except in an application to the state board for certification of a device, represent,— any device as a motor vehicle pollution control device for use on any used motor vehicle unless that device has been certified by the state board. No person shall sell, offer for sale, advertise, or represent any motor vehicle ° pollution control device as a certified device which, in fact, is not a certified device. Any violation of this subdivision is a misdemeanor." . Any apparent violation of the conditions of this Executive Order will be submitted to the Attorney General of California for such action as he deems advisable. Executed at Sacramento, California, this [ Z 66 dayof April, 1978. Thomas C. Austin Deputy Executive Officer

State 6f California AIR RESOURCES BOARD March 28, 1978 Staff Report Evaluation of Mi]eage Minder Co. "Mileage Minder" Device in Accordance with . Section 2222, Title 13. of the California Administrative Code Introduction . On August 23, 1977, the Air Resources Board (ARB) notified Mileage—Minder Co., 2999 Mission Street, San Francisco, CA 94110, that their advertisement of the "Mileage Minder" pressure regulator may be in violation of the California Vehicle Code Section 27156 and the company was requested to apply for an exemption from the prohibitions of this law as.provided-in Section 2200 of Title 13 of the California Administrative Code. ©The company claimed by letter dated October 10;, 1977, that the governing regu]afion was not applicable to its "Mileage Minder" device. Two devices were submitted to ARB for evaluation. Pursuant to Section 2224(b) of Title— 13, of the California Administrative Code, the ARB conducted tests on the "Mileage Minder" device to determine compliance with the requirements of Section 27156 of the California Vehicle Code, II. System Description The "Mileage Minder"—device is a fue!l pressure regulator installed between the fuel pump and carburetor. The applicant claims the

device is designed to maintain thé proper fuel fldw to the carburetor at the optimum pressure.. By regu]atfng the supply pressure it is claimed that a morfi uniform— level of fuel can be maintained in the carburetor float bow! over the range of operating conditions of the vehicle, thereby enabling better air fuel ratio control. The device consists of a main upper brass metal housing and lower glass container. The upper housing contains the fuel inlet and outlet, vacuum port fér connection to the intake manifold, ball valve, and spring loaded diaphragm, that regulates the opening and closing of the valve. The lower glass container holds the fuel, a highly sensitive porous filter, and a ferrite maénet_that attracts metal particles that escape the fi1ter. The device modulates the fuel pressure by the action of intake manifold vacuum on the diaphragm which regulates the opening.and closing of the valve. Dufing high manifold vacuum the spring Toaded—diaphragm partially closes the valve causing'the reduction of outlet fuel pressure. At low manifold vacuum, the valve opens thereby causing the fuel to—return to normal pressure.

III. System Evaluation | ; The ARB Laboratory evaluation of the device consisted of parametric pressure tests at>different engine speed and loading conditions to determine the effect of the "Mi]eége Minder"® device on a typical carburetor. The purpose was to identify any abnormal fuel delivery conditions whic?éouid adversely affect exhaust emissions. Tests were conducted on a 1976 Canadian Ford 302—2V, non—catalyst engine installed on an engine dyno test stand. Steady state tests were performedat idle, 1,000, 2,000, and 2,500 rpm with the engine loaded at 25%, 50% and maximum torque at each speed setting. Fuel flow rates and manifold vacuum were measured and compared to baseline data.> Table I summarizes the pertinent tesf data. ‘The test results show that the deviqe reduced the output fuel pressure from 5.5 psig to about 2 psig at most of the engine operating conditions except at.very low manifold vacuum— conditions. At wide open throttle, the output fuel pressure did not change. At any particular combination of engine'speed and loading condition, the reduction of fuel output pressure due to the instaT]atiop of the device did not change the fuel flow rate except at idle which was reduced by 10%. This indicates the device pressure regulation down to 2 psig will not significantly change the .air fuel mixture, and consequently will not have any adverse effect on exhaust emissions.

IV. Manufacturer‘s Claims The manufacturer claims the installation of the "Mileage Minder" device on vehicles will improve fuel economy. It is ihe staff‘s opinion that reducing the fuel supply pressure under non—critical operating modes causes a slight depression in the fuel level of the carburetor float bow1. This cofi]d re$u1t in a slight leaning of the air/fuel ratio and may cohtribute to slight improvement in fuel economy. <Our previous tests on similar pressure regulators showed a slight 1mprdvement in fuel economy of certain vehicles listed. 1 Howevér, the reduction in fuel consumption was : minimal and would not jJustify the cost of such a device for many vehicle applications. V. Conclusion and Recpmmendation Based on the discussion presented herein, it is the staff‘s opifiion that the insta]]atiofi of the "Mileage Minder" pressure regulator will not adversely affect the vehicle exhaust emissions. Therefore, the staff recomendsnthat "MiTeage Minder" devi;e be granted an exemptjon from the prohibitions of California VehicTe Code $ection 27156 for its "Mileage Minder" device for 1978 and older gasoline— powered vehicles. ]Evaluation of Cagle Corporation "Cagle Automatic Fuel Control" Device for Compliance with the Requirements of Section 27156 of the Vehicie Code, dated May 27, 1976.

TABLE I — MILEAGE MINDER FUEL FLOW MEASUREMENTS Engine Speed (RPM) 900 1000 — 2000 2500 % of Max. Torque tdte [ 2s | so 100 2s so 100| 2s so| 100 Mileage Minder BaseTine 5.8 5.8 5.8 5.5 5.8 5.6 4.7 5.6 $5.4 4.3 Output Pressure (PSIG) . Device as ofae |zra sc bzro |zre sal 20{2a 4s Manifold Vacuum _ | Baseline is —[13.2 |10.4] 0 is fao.g|o.6 fs.4 fio.s| 123 (In. Hg.) Device 15 0 fiz.e |ro.2}f o fas.a|ro.7|o.s fis.3a |10.6 123 Fuel Flow — Baseline 0.9 |1.2 1.4f es |or.gl s.0| s.a[gl4 .8 7.3 (gm/sec.) . Device o.s Cfinzl] nal2as fo.a| s.o| s.o|rae 3.8 7.4


Document Created: 2005-09-01 12:40:44
Document Modified: 2005-09-01 12:40:44

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