Re: Cub Questions

Posted by Ludwig on July 11, 2007 at 07:26:28 from (198.51.119.155):

In Reply to: Re: Cub Questions posted by ScottyHOMEy on July 10, 2007 at 20:29:02:

Scotty is right about non-detergent. Unfortunately if you don't know what was run in it before you have to assume it was non-detergent. It'd be nice if you could ask.
Anyway its not all that hard to change over. I did with my Super M, heres how:
First I changed with non-detergent except with 1 quart of detergent oil. The idea being that introducing a little detergent would loosen some of the crud but not all of it.
Next I made another change more frequently than I normally would. Normally I change each fall leaving the tractor for the winter with fresh oil, this time I changed spring and fall. In the fall I switched to all detergent oil. I used store brand cheap 10w30.
In the spring I ran the tractor for 1 day (~8 hours) mowing and changed the oil again. Its worth noting that I always change the filter, thats DOUBLE important here because we're moving out built up crud so the filter is supposed to be grabbing it.
Again I used the cheap store brand oil. Another day of mowing and I changed again. The oil coming out at this point didn't look real bad, the change after the first 8 hours was black and nasty.

This time I put in Delvac 1300. I chose it because its a diesel oil and should have more detergents, its also a 15w40 oil and should leak less. The downside is that in cold weather I'm always careful to make an easy slow warm up so that thick oil gets moved around. I would not use this as a winter oil unless I was using a real good block heater or two.

So the Delvac 1300 stayed in until fall, this tractor doesn't get alot of use so that was maybe 32 total hours of use on that oil. Now we're back on the change it in the fall pattern using Delvac 1300 which I bought 5 gallons of.

At some point I'm going to switch to Mobil 1 15w50 and do some oil analysis. I suspect I could go 2 years on an oil change with that oil but I'm not sure. The big reason for using that oil is because I use it in almost all my other stuff (diesel car and 2 motorcycles) so I could save not inconsiderable money by buying a drum of it. Plus its nice to have exactly what you need hanging around when you need it.

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