Clean oil change, No I mean really clean

[roadhard1960]

When I change the oil in my John Deere 870 (28 hp Yanmar) the oil comes out black. When I add fresh oil and a new filter I start up the engine for a few minutes and then let the oil level settle. The oil still looks new.

I drive my 2003 up on ramps. I drain the oil by removing drain plug. I remove the filter. I get out the MityVac and suck a few ounces (almost 4) out of the oil filter housing. I install the plug. I dump a few quarts through the filter housing to fill up those passages I sucked out. I then top off the normal way. I start the engine and drive off the ramps. I check the oil and it is black. So where is all that black oil from in the Jetta that I do not see/get in the JD? Granted the JD only has 300 hours in 10 years while the 2003 probably has 3,000 hours but even when the Jetta was new oil changes were like that. Black after just a few minutes of idle.

Does draining the oil when the car is level result in more oil drained? Do the cam buckets hold that much oil? I know my Toyota 22RE cam buckets hold a fair bit of oil but like blood, a little can seem like a lot. Next oil change I will nerd out and try to get the car level before I finish the oil change. I will also remove the cam cover to see what quantity of oil can be sucked out.

Last oil analysis showed no signs of oil issues if you ignore the fact that the air filter was not properly installed and was letting in excessive dirt. Shame on me. I may never hit a million miles if I do not do better air filter changes. TBN of 6. 10,000 miles on sample.

 

[whitedog]

Black oil is of no concern. Your Yanmar probably doesn't have an oil cooler on it, it is physically smaller, holds more oil (5.1 quarts), and has solid lifters so it will take longer for it to become black.

Now, can someone tell me why engine oil would be brown after going 1.5 X the oil change interval and have a viscosity of 50 Wt?

 

[40X40]

Now, can someone tell me why engine oil would be brown after going 1.5 X the oil change interval and have a viscosity of 50 Wt?

Water contamination?? (pure guess) Did you have it analyzed?

Bill

 

[whitedog]

Water contamination?? (pure guess) Did you have it analyzed?

Bill

That is what Stavely told us from the UOA. Also high sillycon.

I wonder if a small amount of fuel got in the oil (and I know that it did) and that oil was never changed, would that fuel cause the viscosity change over that much time.

Hmmm

 

[Dimitri16V]

man, you worry too much about. just change the oil and drive the car..

 

[TornadoRed]

I start the engine and drive off the ramps. I check the oil and it is black. So where is all that black oil from in the Jetta that I do not see/get in the JD?

Your John Deere doesn't have an EGR system. But you might ask the folks who have their EGRs totally disabled, to see if their oil turns black as quickly.

 

[roadhard1960]

The egr was broke between the timing belt change and about 150,000 miles when I bought a new one. The egr would not open up because the diaphram was pretty leaky.

On topic question. These guys have testimonials that claim their bypass filter helps oil look pretty new after being in use a while. http://filtrationsolutionsww.com/ Does the Amsoil kit do anything to help the oil look pretty? The threads on the DG/Amsoil kits I read said that the smaller than a few microns stuff that is not filtered out still lets the oil get pretty black. Are the testimonials from the FS-2500 kit exagerating the cleanliness?

 

[OilGuy]

Along the OP lines, why does my owners manual (03) state 4.8 quarts when 4.8 doesn't come out when you drain. I've drained mine level and on ramps with the same result. I get ~7 oz of oil out of the filter housing as well. It almost seems that 4 qts is just about right.

 

[roadhard1960]

Well .7 quarts mixing up could make for some dirty looking oil just after a change. Thanks for suggesting it is not the ramps that is the issue. I change oil in to a 5 gallon metal bucket. I do not know how much drains and I buy oil by the gallon. I seem to be too lackadaisical to notice how much is going back in.

 

[etextdi]

I do not know how much drains and I buy oil by the gallon. I seem to be too lackadaisical to notice how much is going back in.

I used to be lackadaisical...but then I got one (..daisical) and now I'm hardwired for minutiae..

...checking oil by the ounce

 

[Acidhead]

The egr was broke between the timing belt change and about 150,000 miles when I bought a new one. The egr would not open up because the diaphram was pretty leaky.
On topic question. These guys have testimonials that claim their bypass filter helps oil look pretty new after being in use a while. http://filtrationsolutionsww.com/ Does the Amsoil kit do anything to help the oil look pretty? The threads on the DG/Amsoil kits I read said that the smaller than a few microns stuff that is not filtered out still lets the oil get pretty black. Are the testimonials from the FS-2500 kit exagerating the cleanliness?

No they are not...check the video..just odered one for my big truck. Would like to put one one the TDI but been taking a beating this year from work and the economy.

 

[jettawreck]

If you are running the correct oil don't worry about it turning black quickly, because it will. Many UOA show great results even way past the 10K change interval. With correct oil and maintainance the engine will outlast the rest of the car. For what it's worth my Shibura tractor turns the oil (Rotella 15/40 nonsynthetic) BLACK right away, but the old International TD30 dozer doesn't.