13 hours on a one year oil change

[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.

 

[greasemonkeyok]

...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.

 

[Midniteoyl]

Oil can coke...

 

[milkman636]

Mobil 1™ Shelf Life | When is Oil Too Old

Sort of answered my own question here. There are more related q&a's on Mobil's site.

 

[milkman636]

Proper Change Interval to Avoid Moisture Buildup in Infrequently Driven Cars

Another related answer for the OP.

 

[Gale Hawkins]

since mobile or Valvoline will not commit to an expiration date I think that tells us or oil does not expire in the can.

 

[Redbug]

So, the bottom line is to run your tractor every so often and get it up to full temperature for about a half hour to evaporate out any condensation. Is that correct?

 

[tomf]

^yep. that's correct

 

[IslandTractor]

So, the bottom line is to run your tractor every so often and get it up to full temperature for about a half hour to evaporate out any condensation. Is that correct?

I am no expert but that is how I interpreted the information too.

 

[Gale Hawkins]

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