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  1. #1
    Bronze Member cleat's Avatar
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    Mar 2011
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    99
    Location
    Brockville, Ontario, Canada
    Tractor
    Dongfeng 254G2

    Default Liquid filled tires

    I finally got around to filling my rear tires. Tire size is 15-19.5NHS R4. I used RV antifreeze and put in around 220 litres (58 gallons). Total cost was around $210.00.

    I figure I just added around 470lbs to the rear of my tractor. That should help with traction and stability.

    I used a small submersible pump in a pail and an old hose from a tire pump to fill the tires until liquid was at the valve with the valve at the 12:00 position. Took around 2 hours to do both tires.

    Hopefully I will not require 4x4 as often.

    Cleat
    DF 254G2 with cab and Townsunny fel-250 loader with Prince Hydraulics joystick. BE 72" finishing mower and 72" snowblower with hydraulic rotation and deflection. Hydraulic top link, 72" Townsunny box blade. Adaptor to mount 3pt attachments on front end loader in place of the bucket. Woodmax 8" hydraulic feed wood chipper (makes the poor DF work). Pallet forks that mount front or rear.

  2. #2
    Silver Member
    Join Date
    Nov 2012
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    126
    Location
    Eastern Sierras, CA
    Tractor
    Kubota L4240HST

    Default Re: Liquid filled tires

    "I used a small submersible pump in a pail and an old hose from a tire pump to fill the tires until liquid was at the valve with the valve at the 12:00 position."
    When I filled my tires, I was told to fill to 70% rather than 100%. You need air in the tire ~30% to provide a cushion.
    If only I'd known then what I know now...except none of this existed back then.

  3. #3
    Veteran Member Bob Rooks's Avatar
    Join Date
    Feb 2007
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    2,278
    Location
    Bothell & Silverdale, WA
    Tractor
    Yuchai Bulldozer

    Default Re: Liquid filled tires

    Straight anti-freeze won't provide freeze protect either. Must be mixed with water: 75% max. Also, what will happen when the weather gets hot and the anti-freeze expands with no air? Will the tire expand at the same rate? Hope so.
    Yuchai 306R dozer, Mustang 2040 skid steer, Mitsubishi MS035 Mini-Ex with four buckets and a rake, Trimble equipped 7' Dual Dozer with twin GCR-2 laser receivers, and a LiTW BH7600 back hoe (sold).

  4. #4
    Veteran Member sam5570's Avatar
    Join Date
    Jan 2012
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    1,324
    Location
    south west virginia
    Tractor
    new holland tn70

    Default Re: Liquid filled tires

    yeah you need to get some of the antifreeze out of tires 70% is correct, i don't know where the idea came from that pure antifreeze will freeze but it's not so that's all i have used in my vehicles and tractor's sence 1970's i drain everything out start engine run till thrmostat opens drain it all and fill back with pure antifreeze.

  5. #5
    Silver Member PRF's Avatar
    Join Date
    Dec 2012
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    245
    Location
    Connecticut
    Tractor
    2012 Kubota L5740, 1970 IH 2444, John Deere x485

    Default Re: Liquid filled tires

    Unmixed glycol antifreeze will freeze at around 0 to -5*F.. It also won't dissipate heat as well.. Always best to mix 50/50 with distilled water, at least for engine use that is.

  6. #6
    Veteran Member
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    Jun 2009
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    1,565
    Location
    Douglas County, Oregon
    Tractor
    09' Kubota b3200HST

    Default Re: Liquid filled tires

    With 100% fill there is a possibility if you bounce a little hard the tire will break the bead and there goe's the fluid.

  7. #7
    Bronze Member cleat's Avatar
    Join Date
    Mar 2011
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    99
    Location
    Brockville, Ontario, Canada
    Tractor
    Dongfeng 254G2

    Default Re: Liquid filled tires

    It's filled to the top of the rim, not the top of the tire. Still took lots of air to bring back up to pressure. The RV antifreeze I bought is to be used at 100% strength.

    Cleat
    DF 254G2 with cab and Townsunny fel-250 loader with Prince Hydraulics joystick. BE 72" finishing mower and 72" snowblower with hydraulic rotation and deflection. Hydraulic top link, 72" Townsunny box blade. Adaptor to mount 3pt attachments on front end loader in place of the bucket. Woodmax 8" hydraulic feed wood chipper (makes the poor DF work). Pallet forks that mount front or rear.

  8. #8
    Platinum Member
    Join Date
    Nov 2008
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    802
    Location
    US Virgin Islands
    Tractor
    Jinma JM304

    Default Re: Liquid filled tires

    Antifreeze intended for use at jug strength has already been diluted to 50/50 or thereabouts so you're fine. The amount of air you have remaining in the tire is fine, too. I filled my ties that way, using plain water with just a dab of biocide, and I've had no problems. It doesn't even get close to freezing here so no worries on that front, and that is enough air to allow for tire flexion on even hard drops and bashes. I'm sure glad I didn't have to buy a couple hundred bucks worth of antifreeze - another good reason to live here!

  9. #9
    Bronze Member cleat's Avatar
    Join Date
    Mar 2011
    Posts
    99
    Location
    Brockville, Ontario, Canada
    Tractor
    Dongfeng 254G2

    Default Re: Liquid filled tires

    In reality I didn't need the antifreeze either as my tractor sits in a heated shop unless it's working blowing or clearing snow. I am hoping the antifreeze will protect the wheels from corrosion as I do not have tubes.
    DF 254G2 with cab and Townsunny fel-250 loader with Prince Hydraulics joystick. BE 72" finishing mower and 72" snowblower with hydraulic rotation and deflection. Hydraulic top link, 72" Townsunny box blade. Adaptor to mount 3pt attachments on front end loader in place of the bucket. Woodmax 8" hydraulic feed wood chipper (makes the poor DF work). Pallet forks that mount front or rear.

  10. #10
    Super Member greg_g's Avatar
    Join Date
    Dec 2003
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    6,028
    Location
    Western Kentucky
    Tractor
    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: Liquid filled tires

    You should be just fine. Assuming you didn't dilute it, typical RV anti-freeze is good down to -50F. There's even some double strength stuff that's good down to -100F. Given that it's intended for use in potable water systems, it's also non-toxic and biodegradable. And it depends upon rim design, but filling to a stem that's positioned at high noon pretty much guarantees a 70% to 75% fill.

    But compared to Rimguard, RV anti-freeze is lighter and more expensive. RimGuard is basically diluted beet molasses, which doesn't start to firm up till about -35F. At ~8.8 pounds/gal, RV anti-freeze is only marginally heavier than water. I had 88 gallons of RimGuard pumped into the R4s on my 3720 (I filled all four). It weighs 11.3 pounds to the gallon, and cost $2.70/gal installed. So for $237, I added nearly 1000# to my 37290 - and didn't even get my hands dirty.

    And for those who haven't done any liquid ballasting, expansion is not a problem. It's simply a matter of filling to the 12 o'clock valve stem, then topping up with compressed air to the recommended pressure. You can even get a special pressure gauge, one designed for liquid filled tires. It's got a check valve to prevent any of the liquid from back-filling the gauge under pressure.

    //greg//
    USN (Ret)
    Former Chinese tractor owner (x4)
    Current John Deere owner

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