Black motor oil.

[dougfollett]

Sorry, it's me again. I meant to add this to the previous post but I think I'm getting old timers. While I was checking the tranny oil I decided to also check the motor oil. The previous owner said that he was religious (don't know what denomonation) about changing it. When I checked it tonight it was black as midnight (the oil). Not being a diesel person I'm not sure if it is supposed to look like this. Is it? Kind of scary.

 

[blackd]

Probably not something to worry about. I rememeber another post on the old forum which said diesels had more microscopic carbon by products that stayed suspended in the oil.

My FX24 turns black aftrer an hour or so of running after an oil and filter change. I was thinking of flushing with diesel or cheap new oil next time just to see if it lasted longer before turning black

 

[lens12]

Black oil is normal. A diesel produces more carbon soot(obvious from looking at the exhaust). The difference between diesel oil & gas engine oil is that the diesel oil is a high detergent oil, so it can clean the carbon off of the cylinder walls after combustion & keep in suspention. If it didn't stay in suspension, it would be deposited through out the engine.

 

[Turfman]

If you have any doubts about the oil change he did, just get a new filter and a couple of gallons of Rotella and do a change. Will give you confidence that the oil is fresh and will protect you engine, lets you get to know you tractor a bit better, only costs about $20.00 for the filter and oil and only takes an hour or so. You'll know for sure when it was changed and know that it is doing its job of protecting the engine.

 

[Anonymous Poster]

Re: For the 9,999th time

Black motor oil is a normal function of ash detergent oil.
Once heated, motor oil that uses ash type detergent turns black.
Put some new oil, fresh from the can, into a frying pan and heat it to 400 degrees, when it cools it will be black.
That's just the way it is.

 

[Egon]

flushing with diesel

I'd advise against doing this unless you wish to rebuild the motor

Egon

 

[Thomas]

Its darn hard to have every drop old oil drain out even if the engine oil been warm,for little old oil mix w/ the new oil will darkend quickly.

Just follow the manual..if it says to change the oil every 50 hours than do so,but to be a tad safer plus feel more comfortable,change 40 to 45 hours..kinda like a safety zone.

I agree w/ Egon..I wouldn't use diesel fuel to flush the motor,not unless your doing a complete tear down and rebuild.

 

[wrinkled]

To put things into perspective as far as my experience... Last weekend I changed the oil in the Honda Civic and just after I started the motor to do a leak test I realized I put in the wrong weight. 5w-30 instead of 5w-20. I don't believe the engine was running even 30 seconds when I shut her down and drained the oil. Even after a measly 30 seconds of running the new oil was as dark and black as what I pull out after 3K miles of running...

Hope this helps...

 

[normde2001]

On the other hand......when I first bought my YM2000B with 520 hrs the oil was ink black. I changed it with Shell Rotella 15w-40, and now at 555 hrs it is just turning black, and I check it every day I use it.

 

[hosejockey2002]

<font color=blue>Even after a measly 30 seconds of running the new oil was as dark and black as what I pull out after 3K miles of running...</font color=blue>

WOW!! When I change the oil in my old Ford Exploder it takes 300-400 miles for the oil to look dirty. You're not running diesel in your Honda, are you?/w3tcompact/icons/grin.gif

 

[dougfollett]

Yeah, gotta wonder about that Honda. I change my car and truck oil (gasoline motors) regurlarly and it takes a few hundred miles before it begins to darken slightly and about six to ten thousand miles before it gets black. Don't usually let it go that far. I'll relax about the tractor oil and change it early next Spring.

 

[ronjhall]

Doug
If you are going to let your tractor set over the winter, it is best to change the oil this fall. The contaminants in the oil can cause corrosion to the internal parts of the engine.
I always change the oil in my boat engines (they are gas) just before it is stored for the winter. This helps to stop internal corrosion.

 

[dougfollett]

You are absolutely right. I just schedualed my 21ft, Alaskan bulkhead, GlassPly for its winterization. Need to do the same for the Yannie. I got too many motorized pieces of equipment. I don't suppose a horse would be any easier. I've got thoes too. Think I'llget a divorce and buy a condo.

 

[jimstractors]

Like most dealers, with the tractors I sell, all the fluids (oil & filter, coolant, trans.) are changed as soon as I receive them. That way the new owner has a starting point for the maintenance schedule. You should probably do the same for yours. Its cheap insurance.
Jim

 

[heehaw]

i "had" a jd 2240, the fuel pump went bad and dumped diesel into the oil pan; no sure how long i had run the tractor before i found the problem, no very long, but i had just changed oil, and the oil was really black prior to this happening; anyway, i checked the oil after shutting the engine down a day or so later, and the oil was way way over full, so i drained it into a 5 gal bucket, and it obviously had a lot of diesel in the oil; so i changed the fuel pump, and changed the oil again, filter and all; the oil never turned black in that tractor again; i kept it about another year before selling it, but it never used any oil and the oil stayed as clean looking as the day it was changed.
heehaw

 

[DancingGatorFarm]

JwJimbo,
Would you know how many filters are on a YM2200, the types and where they're located, so I can change them?
I changed the engine oil and oil filter, also the tranny fluid and cleaned the strainer, but I'm wondering what others need to be changed or cleaned, if there are others?

Thanks,
Jim

 

[jimstractors]

DancingGator Farm:
The other two obvious ones are the air filter, and fuel filter. Depending on the model, you may have a hydraulic filter on the hydraulic return line. Most of the filters have wix or napa crosses.
Jim