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Flushing oil ???

N

Northvale - PA

Member
I have a Ferguson TO-20, I"m changing the transmission oil. Ferguson forum mentions NOT flushing the housing with diesel but use a light weight flushing oil. So my question is, how about dirty 5W-20 oil from my car. I change the car every 3,000 miles, so it isn"t crud. Housing holds 6 gallons so there is no way I can afford to buy that too.
 
I can't imagine why you wouldn't use diesel other than the cost...
If I've got to clean something like that I remove the cover and use an undercoating gun to spray/wash down the compartment.
Odds are tho... it will get the milkshake look soon after you change the oil anyway, regardless if you flush it or not. Unless it gets hot enough to evaporate out the condensation... that's the look it will have.

Rod
 
diesel will not suspend any solids so they can be flushed out. any oil is better than diesel.
for flushing you dont need the total recomended amount. half the amout is good enough. diesel is pretty useless as a parts washer. kerosene works good.
 
I have flushed several transmission housings with a few gallons of ordinary mineral spirits and a bench top parts washer. I just pulled the top covers and set the parts washer on the floor under the drain. A long hose on the washer and I flushed every last bit of sludge, dirt, etc out quite easily.
 
(quoted from post at 16:44:23 03/18/13) diesel will not suspend any solids so they can be flushed out. any oil is better than diesel.
for flushing you dont need the total recomended amount. half the amout is good enough. diesel is pretty useless as a parts washer. kerosene works good.
Click to expand...

Can you explain "will not suspend solids"? I have used diesel to flush a few transmissions before putting the cover back on, and watched it carry plenty of crud out.
 
a simple example is: take a pint of diesel and a pint of oil and pour a spoon of sand in each one. the higher the vis of a fluid the more solids it will suspend.
another example is right here at work drilling an oil well. if the viscosity of the mud is not high enough there is nothing to keep the solids suspended on connections and to be carryed out while drilling. for example when hitting a gravel seam need to raise the vis to carry the gravel out.if you had just water in the hole the gravel would just fall back down over bit cause it has no carrying capabilities and then be stuck in the hole. thats one thing you dont want.
 
Use diesel, kerosene, or flushing oil. Do NOT flush it with used motor oil. Far better to not flush at all, than to use used oil. You will be doing far more harm than good with dirty engine oil. Tom
 
I tried using used motor oil don't do that seals dont like it . diesel is the best thing I've found to get things clean especially if you have water in the resivoir.
 
That used light weight oil is perfect. Fill the case with it and drive until nice and warm. Then flush. Then send it to me for my old indestructible Tahoe LOL
You really should follow your owners manual and change oil at 5k or 7k though.
 
Doesen't a TO20 require mineral oil in the transmission. I would be caeful about using anything else. Use the reccomended oil, run it for a few hours and change it.
 
(quoted from post at 19:14:58 03/18/13) a simple example is: take a pint of diesel and a pint of oil and pour a spoon of sand in each one. the higher the vis of a fluid the more solids it will suspend.
another example is right here at work drilling an oil well. if the viscosity of the mud is not high enough there is nothing to keep the solids suspended on connections and to be carryed out while drilling. for example when hitting a gravel seam need to raise the vis to carry the gravel out.if you had just water in the hole the gravel would just fall back down over bit cause it has no carrying capabilities and then be stuck in the hole. thats one thing you dont want.
Click to expand...

I see what you mean now, thank you. But I also see that it is unlikely that it applies in this scenario since we are flushing the sludge in the transmission out the bottom as opposed to the top
 
(quoted from post at 16:09:33 03/18/13) I have a Ferguson TO-20, I"m changing the transmission oil. Ferguson forum mentions NOT flushing the housing with diesel but use a light weight flushing oil. So my question is, how about dirty 5W-20 oil from my car. I change the car every 3,000 miles, so it isn"t crud. Housing holds 6 gallons so there is no way I can afford to buy that too.
Click to expand...

OMG -Here we go again. We should have a receipe book. Freeing stuck engine, followed by flushing the 9N trany and then let's not forget the radiator. Use the 5w 20. Diesel and kero are the same thing basically, but both come with a cost. The trany gears won't know the difference. All petroleum products have a level of soluability. LOL.
 
it applies perfectly in this situation. as log as the sludge will mix with the oil it will be suspended and flush out the drain.with diesel the solids will fall right to bottom as soon as movement is stopped. if the top was off you would see the a lot of solids still on btm of case.
 
(quoted from post at 11:53:47 03/19/13) it applies perfectly in this situation. as log as the sludge will mix with the oil it will be suspended and flush out the drain.with diesel the solids will fall right to bottom as soon as movement is stopped. if the top was off you would see the a lot of solids still on btm of case.
Click to expand...

How about 50/50 mix of hytran and diesel?
 
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