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JF1957 · 05-03-2016, 08:46 PM

Just received my oil test result wich said that they can not make the test because there is excesive water in oil. They suggest to replace oil and filter and make an another test later. Now i am very confuse and scary, did anybody ever have that issue and where did that water may came from ?
Best regards

Mr_D · 05-03-2016, 08:55 PM

Leak from the radiator to the trans cooler, or someone put water into the trans.

JF1957 · 05-03-2016, 08:58 PM

Quote:

Originally Posted by Mr_D

Leak from the radiator to the trans cooler.

Shoulden that be Prestone instead of water ?

Mr_D · 05-03-2016, 09:18 PM

Quote:

Originally Posted by JF1957

Shoulden that be Prestone instead of water ?

I hope not, Prestone isn't an approved coolant for a wet sleeved diesel engine like yours.
Here's what happens if normal coolant is used in a wet sleeve diesel:

Papa_Jim · 05-03-2016, 09:22 PM

Well, it has to be determined if it's engine coolant or just water.

If it's engine coolant, you have big problems my friend!

If it's just water, then my guess is it's condensation. Anyone's guess how that is happening. Storage temperature fluctuations, short running times, etc.

One man's opinion. Others may differ.

Jim

dbarton291 · 05-04-2016, 05:43 AM

Coolant in the transmission normally comes from a failed transmission cooler. The transmission oil and the engine coolant get mixed. Coolant in the transmission oil attacks the bond between the clutch plate friction material and the steel backing. In that case, the transmission needs to be rebuilt.

Water in the oil normally comes from ingestion through the breather. This can happen from things like being driven through deep water, a bathroom leaking on top of the transmission, or being pressure washed around the breather. Condensation normally wouldn't show up as excessive water in an oil sample, I wouldn't think. Maybe Tom Johnson has some input on that.

Excessive water in the transmission fluid can give the fluid a pink color sometimes called the strawberry milk shake. Water will soak into the friction material in the clutch plates. When the clutch is applied, the result is steam that starts degrading the friction material. The surface of the clutch plates will be dark and feel gritty. Run too long, the clutches will fail.

Tom N · 05-04-2016, 05:51 AM

"MD3060 oil test result, WATER in oil"

Was this coach ever in a flood???

Hit_the_Rhod · 05-04-2016, 06:06 AM

Quote:

Originally Posted by JF1957

Just received my oil test result wich said that they can not make the test because there is excesive water in oil. They suggest to replace oil and filter and make an another test later. Now i am very confuse and scary, did anybody ever have that issue and where did that water may came from ?
Best regards

The whole point of testing oil that has been in equipment is to quantify trace amounts of materials in the oil to see if there is evidence of excessive wear etc. Changing the oil with fresh oil and retesting isn't going to give you a very good indication of the health of the transmission.

Wouldn't there be some way of getting the water OUT of the oil sample and then testing, perhaps heating to 180 degrees (normal operating temperature, as you don't want to change the characteristics of the oil) for an extended period of time to encourage the "water" to leave the oil, and then retest?

Replacing the oil and filter, and "retesting later" would seem to mean that they are telling you to RUN the coach like normal before retesting. I would want clarification of whether it is WATER or COOLANT that they are talking about. If COOLANT, I would NOT run the coach until I figured out how the water got into the oil!

JF1957 · 05-04-2016, 08:55 AM

I just received the confirmation and its water not antigel

in fact, its water and sodium, so i think the last owner may have encounter some snow on is way back home from south. I'll check the breather and get an oil and filter change and than just watch it closely for a while and have a retest in maybe 5,000 miles, what do you think ?

Mr_D · 05-04-2016, 03:56 PM

"antigel" I assume autocheck changed that from antifreeze?

I'd drain fluid, change filters and refill. Then test in 5,000 miles.

Duoglide1 · 05-04-2016, 04:18 PM

I'm with Mr D. I'd do exactly that but be aware that depending on the amount it could take a double drain and fill just like if you were going from Dex to Transynd. Good luck.

2007 Monaco Executive 45' 525 ISX

Mr_D · 05-04-2016, 04:20 PM

Quote:

Originally Posted by Duoglide1

I'm with Mr D. I'd do exactly that but be aware that depending on the amount it could take a double drain and fill just like if you were going from Dex to Transynd. Good luck.

Good point!

hzjcm8 · 05-05-2016, 07:43 AM

Can you post the report? If it's water and sodium, it could be an internal transmission cooler leak. Normal water content would be less than 0.1%.

Tom Johnson
Allison Transmission Fluids Engineer (Retired)

Tom N · 05-05-2016, 07:50 AM

At the start of this subject thread I, and possibly some others, may have been confused with "water in the oil".

I have always referred to transmission lubricant as "fluid" rather than oil.

-Tom