Results 1 to 9 of 9

Thread: 2 cycle engine oil to add lubricity to fuel

  1. #1
    Join Date
    Jan 2004
    Location
    Morristown, Tn
    Posts
    97

    Default 2 cycle engine oil to add lubricity to fuel

    I have heard that some dodge owners are using two cycle oil to ad oil to the fuel to lube the pumps. My DMAX mechanic at local dealer recomended it off the record. does anyone have any advice or experience doing this? I am starting to hear a new flutter/clatter when pulling hard grades. 17000 on truck
    2005GMC CC 2500HD SB 4X4(SLE,SilverBirch,DarkPewterInterior,LLY,ZF6,G80 , PYO wheels,rubber floor covering,trailering stuff,and more)
    duraflap mud flaps
    Putco Boss Bars
    B&W Turnoverball
    Line-x
    Covercraft fitted seatcovers
    Weathertech vent shades
    Auto-meter ultra-lite gauges
    AIR LIFT air bags

  2. #2
    Join Date
    Nov 2003
    Location
    COLORADO
    Posts
    723

    Default

    I run 2 stroke oil in my fuel in place of Stanadyne or Power service. I've heard reports of it quieting the motor down and bringing balance rates back in line. That new noise you are hearing could be your flywheel like mentioned in the other thread.
    white '93 K2500 started it all..
    red '94 K3500 old faithful
    black '93 K3500 daily driver
    '83 G20 conversion van
    '74 C65 truck diesel conversion...

  3. #3
    Join Date
    Jan 2001
    Location
    Blackfoot, ID, USA
    Posts
    978

    Default

    Since the swapover to ULSD, I've been adding 2-stroke oil to my fuel at a ratio of 1 ounce per gallon of fuel (1:128). I've noticed a smoother idle, quieter operation and it feels a bit "spunkier" that before the oil. I was sold by numerous confirmations of improved injector balance rates with the addition of 2-stroke oil to the fuel.
    Tom Ashley 2004 6.0 2500HD/Silverado CC/SB/4x4

  4. #4
    Join Date
    Apr 2001
    Location
    Alvin, TX, USA
    Posts
    192

    Default

    I know a lot of people used to use 2 cycle oil or even ATF. But that was before we got stuck w/catalytic converters. I would think it would plug the converter over time.

  5. #5
    Join Date
    Aug 2006
    Location
    Left Coast
    Posts
    112

    Default

    I was told by a local Diesel shop to use ATF to the tune of 1 qt every 3-4 fill. I aksed why not every tank and he said because the fuel circulates you don't need it everytime.

    Is 2 stroke oil better? I have an LBZ but the Cat walked away

    FB
    2006 GMC D/A C/C S/B, Snug Top Shell, Bed-slider
    33 inch Toyos, 17/8 Pro Comp Wheels, 4 in SS MBRP Exhaust-Turbo back, Evolution Tune, Mag-Hytec on Rear and Trans, Tranco Jr Shift Kit.

  6. #6
    Join Date
    Nov 2003
    Location
    COLORADO
    Posts
    723

    Default

    2 stroke oil is better in the respect that it is low in ash since it is meant to be burned as fuel. ATF and other oils will cause ash deposits in the combustion chamber and injector tips.
    white '93 K2500 started it all..
    red '94 K3500 old faithful
    black '93 K3500 daily driver
    '83 G20 conversion van
    '74 C65 truck diesel conversion...

  7. #7
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,382

    Arrow

    The additive packages found in lube oil & ATF, when used as a fuel additive, could poison the catalyst - kill the 2007 Diesel Particulate Filter. Commercial diesel fuel additives engineered to work with the new diesel emissions system will likely increase fuel economy enough to pay for itself (due to a cetane improver). There's no economic payback with oils & ATF.

    Jim

  8. #8
    Join Date
    Aug 2000
    Location
    Riverside, CA USA
    Posts
    686

    Default

    In the old days, 2 stroke oil, 30 weight motor oil, ATF, and Marvels were all used in diesel fuels with no ill affects, and maybe some good effects. With the new engines and diesel fuel, these old additives are now wifes tales and may well not be good for the modern electronic diesel engines. There are lots of old truckers around and these additives keep getting mentioned again and again, but as More Power sugggest, beware!
    83 C10 Suburban, Silverado, 6.2, 700R4, 3.73, 31-10.50R15
    82 C30 Crew Cab dually, 6.2, Banks, Th400, 4.10, Gear Vendors, 235-85R16
    83 C20 Suburban, Sierra Classic, 6.2, 700R4, 4.10, custom paint, 285-50R20
    95 Yukon, 6.5, 4L80E, 3.42, 265-50R20
    73 GMC Astro 95, 8V71, 10 speed Roadranger, 110" WB, 6 each 11R24.5

  9. #9
    Join Date
    Aug 2006
    Location
    Left Coast
    Posts
    112

    Default

    OK, so taking the ULSD and the HPFS (high pressure fuel system) into account and say w/o the cat , what if any additive would be reasonable if any?

    FB
    2006 GMC D/A C/C S/B, Snug Top Shell, Bed-slider
    33 inch Toyos, 17/8 Pro Comp Wheels, 4 in SS MBRP Exhaust-Turbo back, Evolution Tune, Mag-Hytec on Rear and Trans, Tranco Jr Shift Kit.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •