Page 2 of 2 FirstFirst 12
Results 11 to 17 of 17
  1. #11
    Platinum Member Qapla's Avatar
    Join Date
    Sep 2008
    Posts
    681
    Location
    Gator Country
    Tractor
    New Holland TC40D HST 4WD FEL/BH

    Default Re: Fuel for old tractors - Lead?

    Quote Originally Posted by bigbull338 View Post
    the best thing for those old motors is to find gas with out E85 in it.but thats like looking for a needle in a haystack.
    Guess I'm glad I'm not in your neck of the woods. Around here, you are doing good if you CAN find E85. However, all the gas has 10% Ethanol.

    Running the "modern" gas will probably not hurt the motor, as long as you aren't working the tractor all-day-every-day. However, I will probably result in a premature need to rebuild the carb if it has rubber seals in it. If it is old enough to have leather seals, the alcohol doesn't do them as much harm as it does the rubber.
    New Holland Workmaster 45 2WD Gear
    Massey Ferguson 240
    New Holland TC40D HST 4WD
    NewHolland 16LA FEL
    Woods BH 70-X Sub-frame Backhoe
    Troybuilt Super Bronco w/42" mower
    Husqvarna DRT 900 Tiller
    Ariens 6.5 HP String Mower
    Husqvarna HU625WT String Mower

    3 point hitch attachments:
    single plow, double plow, 5' & 6' deck mower, tiller, 2 cultivators, planter, fertilizer spreader, disk set, sprayer, and a few homemade attachments

    30 acres, 15 acres, 5 acres

  2. #12
    Veteran Member
    Join Date
    Jan 2009
    Posts
    2,244
    Location
    Carroll, Ohio
    Tractor
    Massey 180 Diesel

    Default Re: Fuel for old tractors - Lead?

    A machine shop operator where I had the head for my '64 Ford truck 6 cylinder suggested using Marvel Mystery oil in the gas tank. Works great in older lawn mowers too, that the valves may stick when using unleaded gas.

    We're still fortunate here in my area, to get 100% gas. You just have to buy it at a company named station. BP, Marathon, Sunoco, etc.

    Alcohol pretty well wreaks havoc on anything neoprene in carbs. I know it took more than several thousand accelerator pump seals out of many early carbs... Mine included, in my '74 Chevy truck.

  3. #13
    Gold Member Bigkrank's Avatar
    Join Date
    Jan 2009
    Posts
    281
    Location
    NW Ohio

    Default Re: Fuel for old tractors - Lead?

    Lot of us around here go to the airport and get 100LL avgas. It's all I've used in old tractors and older small engines/chainsaws for quite a few years. Doesn't varnish either.
    Several garden tractor pullers
    Kubota B2630
    Kubota ZD28
    Ford 655D backhoe
    Bobcat T190, various attachments
    Numerous Farmalls

  4. #14
    Elite Member
    Join Date
    Nov 2005
    Posts
    2,948

    Default Re: Fuel for old tractors - Lead?

    As I understood it the issue is "soft" valves and/or valve seats.
    The lead additive somehow softened the blow of the valve hitting the valve seat, i.e. its benefit was mechanical not chemical. It was an anti-knock agent too.
    BICBW.

    I used a lead substitute additive in 80s/90s boats, which were supposedly 5 or 10 years behind their car/truck equivalents - at the time.
    I haven't run a boat in a long time, so haven't looked for the lsa at Wally world lately.
    I may still have some, I'll dig around and see what I can make out of the label.

    I think there were some places offering head re-builds with hardened valves and seats - which were claimed to fix all things (-:
    I never looked into that fully,,,,, it may be worth some research.

  5. #15
    Veteran Member
    Join Date
    Oct 2010
    Posts
    1,151
    Tractor
    NHtd75

    Default Re: Fuel for old tractors - Lead?

    I don't know what all the hype is about leaded gas. Natural gas and propane engines ran just fine without lead and the valves lasted a lot longer than engines running leaded gas.

  6. #16
    Elite Member
    Join Date
    Nov 2005
    Posts
    2,948

    Default Re: Fuel for old tractors - Lead?

    Quote Originally Posted by SandburRanch View Post
    I don't know what all the hype is about leaded gas. Natural gas and propane engines ran just fine without lead and the valves lasted a lot longer than engines running leaded gas.
    The "hype" has history.
    I can't get the details exactly right, but if you try a search for Dupont, General motors, and tetra-ethyl lead you should get the "story".
    At least some modern rendition, courtesy of wiki and its contributors.

  7. #17
    Silver Member
    Join Date
    Sep 2005
    Posts
    152

    Default Re: Fuel for old tractors - Lead?

    I personally think the issue is overblown and you could probably run regular unleaded gas in an old tractor without noticing any ill effects. On something that old chances are something else is going to break long before the lack of lead affects anything. I'd be more worried about running gas with ethanol in it, but ethanol free gas is pretty easy to find in my area if you look around. Several stations have signs boasting ethanol free gas and that's where I buy gas for my chainsaw and other small engines.

Page 2 of 2 FirstFirst 12

Similar Threads

  1. Oil & Fuel TC25D Won't Start - Possible Fuel System Problem?
    By webbmeister in forum New Holland Owning/Operating
    Replies: 6
    Last Post: 04-07-2012, 03:06 PM
  2. Home heating fuel /Tractor ?
    By First one in forum Oil, Fuel & Lubricants
    Replies: 30
    Last Post: 06-10-2010, 09:46 AM
  3. locking fuel caps for tractors?
    By accordionman in forum Attachments
    Replies: 13
    Last Post: 06-02-2008, 06:10 PM
  4. Off Road vs Home Heating
    By Mike_VT in forum Oil, Fuel & Lubricants
    Replies: 9
    Last Post: 06-15-2007, 06:50 AM
  5. Replies: 0
    Last Post: 12-07-2004, 08:45 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.