When to change the oil?

I know that I cannot go by the hours I put on these tractors for an indicator as to when to change the oil. How often, based on time and not usage, should I change the oil in these 2 tractors? I know there are a lot of collectors out there with many many tractors and I doubt they change the oil in all of them every 3 months or even once a year.

I have been going with once a year for both, changing the oil and oil filter. Is there a synthetic oil I should use instead of the regular oil I have been using.

I also have a 1997 Ford F-350 for a 460 V8 with 72,000 miles on it. I guess I have the same question for it since it has had 2000 miles put on it in the past 2 years.

Thanks for any input.

regarding the oil changes, we try to change them 2x/year if not getting used alot. Most of our use occurs in the summer w/ haying, so we change them in the fall after that is done, and then after the temps equalize and get out of the rise/fall cycle in the spring, we'll change them again to make sure there is no condensation in it before we put them to hard work in the spring. if i was only going to change them 1x, i'd do it in the spring. we just figure better safe than sorry.

If your in a cold climante then I would change oil every year as mositure and oil create a very nasty acid.

I like Chevron oils. I used Pennzoil and Quaker State for the past 40yrs but both have failed me as I started using oil way above my normal usage. I switched brands to Chevron Surpreme on my gassers and Delo on my diesels and my oil consumption went back to normal.

As a side benefit, my gasser car increased fuel mileage by 12% after switching to Chevron Surpreme. Not a fluke as my son also seen a 10% increase on his gasser. No other changes were made at the time.

The only way I've been able to make synthetic pay on paper is too travel many thousands of miles each year. For the average user it's just not cost effective.

T_Bone

• Mobil oil.

Of course to contradict myself today's oils are pretty darned good so its quite likely that the oil will be able to neutralize the acid built up over a limited amount of running during the summer and it'll be fine during the winter...

So basically its probably fine either way.

My Farmall Super M gets the oil changed whenever I get to it. Its been something like 3 years now which is really bad. I'm going to try to do it this spring especially as I want to do some plowing. I run the tractor about 20 hours a year, a good schedule would be to change the oil in the fall.
I've got something like 2 gallons of Valvoline 10w30 hanging around. Once thats used up I plan to lay in a quantity of Delvac 1300 15w40. I only use the tractor in relatively warm weather (May through October) so I feel that 15w40 will be fine, especially as I let it warm up good before I do any work with it.

I would follow Mark’s advice and make sure you’re starting with a clean oil pan before using synthetic oil.

Post a message over at the JD board as there are some who work for JD show up often.

He planted several acres of corn with it 4 years ago and found out he had cancer, I ended up plowing the corn out because he was to sick, by August he had passed away.

I was offered $5000.00 for it 2 years ago and turned it down as fast as I could say the words. I guess I will hang on to it as long as I have any use what so ever for it.

One thing I we have started using the 140 for is for a hay ride on Halloween. My sister and her family live in a large subdivision where everyone usally walks from house to house. But we use the 140 and a 12' trailer with hay, all lights working on the tractor and trailer. We all have a lot of fun, expecally me driving an old tractor around one of the "upper class" areas. Since we live in north central Alabama the weather is fine as long as it is not raining.