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SAE hose ratings & Viton hose cost ratings & useage???

Discussion in 'Maintenance & Fuels' started by Crankme69, Apr 3, 2011.

  1. I spent the better part of the day searching the net trying to determine what fuel hose should be used & I know less now then when I started. The only thing I have learned is the cost of the so called Bio rated rubber fuel hose from Napa is $12 a foot & that ain't gonna happen. I'll get creative with brake line or copper tubing before I spent 12 bucs a foot.

    The rubber fuel hose I recently installed on my 6.5 fuel return line to replace the rotten steal one on the frame is rated SAE 30R7 & that cost me 3.99 a foot at Autozone for 10 feet, absolutely ridiculous $$$ IMO!

    Please educate me...

    jrsavoie likes this.
  2. tnt87monte

    tnt87monte New Member

    Mar 26, 2011
    new york
    we are runnig veggie oil and the only stuff we have found that doesnt < seep > it the napa stuff !!
    jrsavoie likes this.
  3. Here in ILL most all the #2 fuel pumps contain a sticker that reads "fuel can contain up to 10% bio diesel blend"

    I have no immediate plans to run anything but #2 presently, but am looking for info on the rubber hose ratings. If I have to spend $12 a foot I will be looking for alternatives for steal line replacements to minimize the amount of hose I need.

    Any info on the fuel hose I installed that is rated SAE 30R7?
    jrsavoie likes this.
  4. tnt87monte

    tnt87monte New Member

    Mar 26, 2011
    new york
    no, but we are running wvo and this stuff seems to hold up but its only been about 16 mnths.
  5. ak diesel driver

    ak diesel driver 6.5 driver

    Feb 7, 2009
    Products > Hoses > Fuel

    A multipurpose fuel hose that can be used a fuel line, PCV connection, emission control line or fuel return line.

    Specific Fuel:
    Leaded and unleaded gasoline, diesel fuel, gasoline blends of ethanol (E10), E-85 and sour gas.


    Tube: Black Chemigum (NBR)
    Reinforcement: 2-Spiral Synthetic
    Cover: Black Hypalon* (CSM)

    Temperature Range F & C: -40˚F to +257˚F (-40˚C to +125˚C)
    SAE Specifications: SAE J30R7
    Goodyear EP Specifications: 580019
    Length: See table below. 1.6', 2' (clamshell), 25' (spool), 250' (reel)
    Brand Layline: 5/16" (7.9mm) 50 psi Fuel/Emission SAE J30R7
    Made in USA Goodyear
    Installation: See selection of Goodyear Engineered Products clamps and connectors
  6. Thanks AK!

    I am having some issues opening up pdf files need to update my adobe I guess.
    jrsavoie likes this.
  7. ak diesel driver

    ak diesel driver 6.5 driver

    Feb 7, 2009
    December 2004
    Form No.: 433-0780
    Avoid comebacks, install permeation-resistant fuel line hose
    Fuel line hoses carry gasoline from the tank to the
    fuel pump, to the fuel filter, and to the fuel injection
    system. While much of the fuel lines are rigid tube,
    sections of it are made of rubber hose, which
    absorb engine and road vibrations.
    There are two basic types of fuel hose: Fuel and oil
    hoses that meet the SAE 30R7 standard, and fuel
    injection hose that meets the requirements of SAE
    Standard fuel and oil (SAE 30R7) hose is rated for
    low-pressure applications at 50 psi working
    pressure up to 3/8" size, and 35 psi for sizes over
    3/8". This general-purpose hose contains a light
    reinforcement, and the rubber materials can be any
    compound that is suitable for fuel, oil and vapors.
    However, Gates Corporation engineers warn
    installers that fuel formulations at many US
    refineries are constantly changing as proprietary
    blends are introduced according to government
    mandates and seasonal influences. At times, more
    aggressive fuels can extract the oils that give SAE
    30R7 hose its flexibility. The result is a brittle, stiff
    tube that will greatly reduce the performance and
    service life of the hose.
    Fuel injection (SAE 30R9) hose or MPI (multi-port
    injection) hose is reinforced to handle higher
    pressures up to 180 psi. It can be used on all
    injection systems that use hose clamps. It is not
    designed to replace coupled assemblies on fuel
    injection systems.
    Fuel injection hose is designed for low permeation
    contact with a wide variety of alcohols, alcohol fuel
    blends, and diesel fuel. It allows 15g/m2/day
    permeation whereas standard SAE 30R7 hose
    allows 550g/m2/day. (Gates fuel injection hose
    routinely performs at 1 to 2g/m2/day of fuel loss,
    well below the allowable standard.)
    Gates SAE 30R9 hose uses a laminated tube of
    Fluoroelastomer, as a thin wall inner layer backed
    by traditional compounds. This first layer protects
    the rest of the hose from attack, swelling or
    permeation from aromatics, oxidized gasoline (as
    can occur in fuel injection systems), ethanol or
    oxygenate additives and a wide range of petroleum
    based products.
    The laminated tube will resist cracking caused by
    "sour gas," which forms when unused gas is
    returned to the fuel tank. As an added benefit, this
    hose construction reduces emissions because fuel
    can't evaporate through the hose walls.
    SAE30R9 hose is also recommended for diesel
    fuel because its fluoroelastomer tube resists
    deterioration caused by some diesel fuel additives.
    As refineries produce cleaner fuels and lower
    allowable permeation rates during the “vehicle at
    rest” condition, older hose specifications such as
    SAE 30R7 are becoming less reliable. This type of
    hose is no longer specified on OEM automotive
    fuel applications because of stringent permeation
    Therefore, Gates engineers assert that the best
    choice for automotive fuel line hose applications
    today is fuel injection SAE30R9 hose. For
    installers, it is the best choice for reduced
    comebacks and for high performance, assured
    trouble free service in a changing fuel environment.
    Finally, for submersible applications such as on the
    in-tank fuel pump, only SAE30R10 hose should be
    used, because when the hose fails, the pump will
    fail. Hose construction consists of low swell
    fluoroelastomer compounds in the tube and cover
    that resist gasoline and diesel fuel permeation and
    aging. Standard hoses have these fuel-resistant
    characteristics in the tube portion only.
    Contact your Gates jobber for information on Gates
    MPI/fuel injection hose and submersible fuel line
    Gates Corporation
    PO Box 5887, Denver, Colorado 80217
    jrsavoie likes this.
  8. btfarm

    btfarm 330,000 Worth and counting Staff Member Moderator

    May 12, 2008
    Sandwich, Illinois
    Just an FYI about the BIO blend. Most of the pumps I encounter out my way (Kendall, LaSalle and DeKalb counties, Illinois) are now all designating a BIO blend of 5%-20% on the pump sticker.
  9. Sharing my learning’s...

    The SAE 30R7 rated hose is good for diesel service but not recommended for BIO Diesel

    The SAE 30R9 is rated for BIO Diesel service and is my preferred choice.

    Pricing / purchasing the SAE 30R9 fuel hose was an education to say the least.

    The prices ranges were a joke!

    The absolute most ridiculous highest cost 30R9 fuel hose came in at $12.00 a foot from your friendly Napa dealer.

    The lowest cost 30R9 I found was had for $23 for a 25 foot roll from EP Cleveland Inc, 7621 Hub Parkway, Valley View, Ohio 44125.

    No need to tell you what option I selected…I’m tight no secret there lol.

    Hope this helps someone down the road & thanks for all the info everyone!

    Best Regards,
  10. Burning oil

    Burning oil LeroyDiesel.com Vendor

    Jan 3, 2009
    I think I could do stainless braided teflon lined hose for $12 a foot. I would have to call my hose supplier when I get back.
    I told you before, but I like the Good Year hose at Auto Zone with the blue liner. It $3.99 a ft though. I've had it on vehicles for 60K miles running WVO, diesel and some bio D.
    jrsavoie likes this.
  11. tnt87monte

    tnt87monte New Member

    Mar 26, 2011
    new york
    thanks for the great info !!
  12. jrsavoie

    jrsavoie Recruit

    May 8, 2008
    Rural Clifton, Illinois
    I wonder if anything has changed in the last 14 years
  13. Will L.

    Will L. Well-Known Member

    Jan 25, 2013
    Boulder City Nv
    Yes. The price. The best fuel line to use- still sae30r9

    The r10 mentioned for inside fuel tanks resistant to swelling more, but is far less flexible, so not recommend for exterior use.

    Also the concearns of gasoline wear fron then has carried over to diesel fuel even more. It is almost impossible to buy Diesel without biofuel in it anywhere in USA because without it the ulsd can not meet lubricity standards. Also more methonal is in both fuels. So if you do buy “straight” ulsd somewhere, ramp up on your lube to the fuel system.

    Finally, you’ll notice there is a guy commenting there who wishes he had a nice, well equipped garage in Alaska. Nowadays he has one.
    jrsavoie likes this.
  14. ak diesel driver

    ak diesel driver 6.5 driver

    Feb 7, 2009
    Last hose I bought at Carquest specifically said bio compatible on it. Sold by the inch
    jrsavoie likes this.

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