13 hours on a one year oil change

[Midniteoyl]

It is fine to not be started over winter if you are not going to use it however.

Agreed.. IF you are going to use it, use it long enough to burn off the moisture.

 

[2458n]

So your saying that you should not store oil for more than a year.:confused3:

Some people just refuse to think for themselves. You know every place that sells oil just dumps it out after 1 year!

 

[greasemonkeyok]

So your saying that you should not store oil for more than a year.:confused3:

Do you not see any difference between the status of oil in the crankcase, and oil in a sealed container?

Some people just refuse to think for themselves. You know every place that sells oil just dumps it out after 1 year!

Very true what you said about some people.

 

[kuboman]

Do you not see any difference between the status of oil in the crankcase, and oil in a sealed container?

Yes I see the difference and I also know there is a difference if the unit is stored inside or out in the elements. Condensation will occur and it will be burned off when the engine is run. 13 hrs of run time will not produce enough acids to harm anything.

 

[JOHNTHOMAS]

My first car was a 1935 Dodge and this was in 1964. I would leave a trail of smoke for miles of the burned oil. I'd stop and get gas for 23 cents a gallon and get a bottle with a metal spout screwed on the top of recycled oil and pour it into the engine and away I'd go. Some times I wish I still had that car but over 160 vehicles later I'm mostly glad I don't. Not sure how much a quart of oil was back then but I know it's about $3 a quart now so I'd cringe now as I'd see that smoke billowing out the back tailpipe leaving a visible trail of where I'd been.
I wouldn't change it if I'd let the tractor run till it warmed up each time that I'd used it. If I let it run 3 minutes every time and then turned it off I'd change it and maybe advertise a tractor for sale.:laughing:
The depleting additives is not what turns the oil black, if it did then my additives are being depleted after about an hour of use on all of my diesel engines.
I read in a car magazine years ago that a molecular engineer said oil never loses it's lubricating factor but it can get dirty and now of course we have the depleting/losing/dirty additives issues but oil still lubricates.

You have never experienced Black Death, or you wouldn't say that.

From my own experience, I don't believe that is true and haven't seen anything in lubrication literature making that assertion.

I started driving, legally, 50 years ago yesterday. I've owned over 160 vehicles, been in several countrys and every state. I've owned 15 Kubotas in the past 10 years and I've never experienced nor have I ever heard anyone ever say they had BLACK DEATH or knew anyone that has had BLACK DEATH. So, I'll have to admit you know a lot more about Black Death than I do because I don't know anything about it. Hope I never get it. Is it real common where your from?
Sorry you haven't read the literature about oil never losing its lubrication factor. Not sure a Molecular Engineer would know more than the average or above average person but maybe they read a lot during their years of study of a specific area of study like molecules (possible oil molecules). Maybe you haven't read all the material about lubrication molecules or maybe I just read the only one printed.
Any way I still wouldn't change the oil at 13 hours and would just wish and hope the Black Death didn't hit me or my machine, whichever one gets it, before I could change it in a couple of years after adding a few more hours to it.:cool2:

 

[Gale Hawkins]

I bet there are 50 yo air compressors with the same shipping crankcase oil in use. They can get hot too.

It is the by product of combustion that gets past the rings that kills the useful life of motor oil I think.

 

[greasemonkeyok]

I started driving, legally, 50 years ago yesterday. I've owned over 160 vehicles, been in several countrys and every state. I've owned 15 Kubotas in the past 10 years and I've never experienced nor have I ever heard anyone ever say they had BLACK DEATH or knew anyone that has had BLACK DEATH. So, I'll have to admit you know a lot more about Black Death than I do because I don't know anything about it. Hope I never get it. Is it real common where your from?
Sorry you haven't read the literature about oil never losing its lubrication factor. Not sure a Molecular Engineer would know more than the average or above average person but maybe they read a lot during their years of study of a specific area of study like molecules (possible oil molecules). Maybe you haven't read all the material about lubrication molecules or maybe I just read the only one printed.
Any way I still wouldn't change the oil at 13 hours and would just wish and hope the Black Death didn't hit me or my machine, whichever one gets it, before I could change it in a couple of years after adding a few more hours to it.:cool2:

Black Death is not a common occurrence around here anymore. And given your experience with motor vehicles (much more than mine), I understand your skepticism. The relevant question would be, do you have a lot of experience with engines that just sit for long periods of time without use?

It is a matter of risk management. What are the chances the event (black death) will occur, vs the consequences if the event occurs (replace engine). I am not suggesting that the chances the event (black death) will occur are high, just that the risk of a $4k (or more) repair job should be evaluated in relation to the cost of an oil change.

As I understand the process, moisture from condensation does not directly affect the base oil, but it affects the additives making them less effective over time. Burning the moisture off after it has denegrated the additives may stop further denegration, but it does not restore the additives to full performance. If you have a reference to article(s) by Molecular Engineer(s) discussing the adverse effects of moisture on engine oil additives, please share as I would be interested in reading it.

I'm certainly not an expert on lubrication chemistry. This link has a thumbnail sketch of Black Death:
Car Bibles : The Engine Oil Bible

 

[greasemonkeyok]

I bet there are 50 yo air compressors with the same shipping crankcase oil in use. They can get hot too.

It is the by product of combustion that gets past the rings that kills the useful life of motor oil I think.

I have a refrigeration unit that has 80-year old oil in it, and uses ammonia as the refrigerant (no longer legal???). But, there is no combustion involved and the unit is sealed from outside air.

 

[Midniteoyl]

I have a refrigeration unit that has 80-year old oil in it, and uses ammonia as the refrigerant (no longer legal). But, there is no combustion involved and the unit is sealed from outside air.

Ammonia is still used in Absorption fridges (RVs), commercially, and in the big industrial units..

 

[greasemonkeyok]

Ammonia is still used in Absorption fridges (RVs), commercially, and in the big industrial units..

I did not know that. Has it been banned in consumer appliances, like refrigerators?

Repairman told me it was illegal to work on a pop-box with ammonia in it.
Maybe that was just a good excuse for not wanting to work on it. The darn things last forever.