Oil & Fuel Additivies to the oil

[rmully]

When I changed the oil on this YM2020 it looked very black almost as if it was never changed in the 500 hours on it. I am thinking of changing it again in about 5-10 hours use. Should I add an oil treatment? and if so what would be the right choices. I used Rotella T 15-40

 

[bp fick]

When I changed the oil on this YM2020 it looked very black almost as if it was never changed in the 500 hours on it. I am thinking of changing it again in about 5-10 hours use. Should I add an oil treatment? and if so what would be the right choices. I used Rotella T 15-40

I wouldn't. Your new oil is busy right now spiffing everything clean and suspending it or trapping it in your filter. If the filter you took off is recognizable and a typical, American brand name filter, chances are it got changed at some point.

If you new oil goes black prematurely, say 40 hours, then consider a second change. You will be good to go. I always felt most cleansing agents were too risky for the gaskets and seals. YMMV.

 

[jlrsn]

I'm with BP and K7LN with respect to additives to modern day oils. The only time I add anything is when a service bulletin comes out from the engine or transmission manufacturer advising a special additive.
Jim

 

[rmully]

Thanks guys !! It had the original Capa filter on it so was not sure if just the oil change and filter were going to be enough. The hydraulic filter was also a Capa but that fluid was very clear.

 

[normde2001]

Change the oil when it begins to turn black, don't worry about the hours. There is nothing an additive can do for you. The "black" in the oil is carbon, which is dust. I don't like my oil full of dust.

 

[YanmarFever]

Change the oil when it begins to turn black, don't worry about the hours. There is nothing an additive can do for you. The "black" in the oil is carbon, which is dust. I don't like my oil full of dust.

Norm,
That is exactly what I had to do to an FX335-D.

The oil was black after 2 hours of running, so I ran some napa engine wash in the oil for 10 minutes (at idle) speed, let it drain overnight, then changed the oil & filter.
Now the oil is clean for many hours before it even starts to change color.
Shell rotella synthetic... love the stuff!

 

[Neat 1500]

Norm,
That is exactly what I had to do to an FX335-D.

The oil was black after 2 hours of running, so I ran some napa engine wash in the oil for 10 minutes (at idle) speed, let it drain overnight, then changed the oil & filter.
Now the oil is clean for many hours before it even starts to change color.
Shell rotella synthetic... love the stuff!

once i ran some engine cleaner in a petrol engine the had about 300k on the odometer, it was quite gunky as they must have run cheap oil in it for a long period of time (was a courier vehicle) but the motor was quiet and smooth,ran like a dream until i used a cleaner. it knocked and rattled its head of after that. i ran some additives to quieten it down and traded it in.......... cleaners......... never again.

 

[normde2001]

once i ran some engine cleaner in a petrol engine the had about 300k on the odometer, it was quite gunky as they must have run cheap oil in it for a long period of time (was a courier vehicle) but the motor was quiet and smooth,ran like a dream until i used a cleaner. it knocked and rattled its head of after that. i ran some additives to quieten it down and traded it in.......... cleaners......... never again.

So sludge was the only thing keeping it from knocking and rattling.

 

[YanmarFever]

once i ran some engine cleaner in a petrol engine the had about 300k on the odometer, it was quite gunky as they must have run cheap oil in it for a long period of time (was a courier vehicle) but the motor was quiet and smooth,ran like a dream until i used a cleaner. it knocked and rattled its head of after that. i ran some additives to quieten it down and traded it in.......... cleaners......... never again.

THE SLUDGE REPORT

Im sorry to hear that it didn't work for you, I have washed many engines since then, and have never had a problem yet.
I think the trick is to just let the engine run at an idle, DO NOT rev them up during the wash process, that's what I was told to do, and just for 10 minutes.

 

[clemsonfor]

Maybe it starved it for oil, in Neat's case. I have heard of cleaning very sludged engines and the crap breaking loose and stopping up the oil pump pickup screen. Again just hear say no experience