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Ford 9N, 2N & 8N Discussion Forum
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oil change

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peter4

06-11-2005 09:50:24




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My oil pressure seems to have dropped in to the low range. When I got a tune up this spring they put 10w-30 in it with new filter.Thinking about changing oil to more of a summer blend, thinking about 30wt non deteregent. I have not use the tractor very much? Could I drain oil and keep same oil filter for now?? How bad is it to add nondetergent to detergent oil??? It has been very warm here last couple weeks, I think 10w-30 just might be to thin??

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Rob

06-11-2005 10:50:55




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 Re: oil change in reply to peter4, 06-11-2005 09:50:24  
If you want to go by the book, the "How to Use the Proof Meter" manual says warm the engine and check the oil pressure at 1500rpm and anything near 25psi is good. That oil filter is more a sponge to remove acidic moisture than a screen to remove particles and you"ll never notice you didn"t change it this one time with so few hours of operation.
Don"t know why putting non-detergent behind detergent would cause a problem.
If you go with non-detergent then make sure the oil does have anti-acid & anti-corrosion additives. That and a few other additives are fine, it"s the detergent the designers didn"t figure the engine to handle. You can easily find SAE 30 non-detergent oil that contains no additives (SA) and then use that along with some of that oil additive stuff that contains the anti-corrosion and other stuff you want.
But if you have 25psi at 1500rpm then maybe you can leave it for another time.
The local farm ranch store sells non-detergent motor oil that says on the bottle it contains no additives but their catalog says that oil "protects against acid and corrosion" so I don"t know what that means or if it"s even true.

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Dell (WA)

06-11-2005 10:45:54




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 Re: oil change in reply to peter4, 06-11-2005 09:50:24  
Peter..... ..you have just discovered the effect of heat on oil. Its called viscosity and when oil gitts HOT, thin viscosity don't make as much oil pressure. 10-30wt oil acts like 10wt when cold and it ain't cold right now is it? In 1939, Ford recommended 40wt for oil when it is HOT.

YES, change yer oil to 40wt detergent for HOT summer weather. OIL IS CHEAP. Bearings are expensive. Naw, you really don't haffta change the oilfilter, theres about 1-qt of oil in it, but I would just to gittcher hands dirty (grin).

Ford recommends oil change every 100 hrs ...or... once every fall.

I use Valvoline 20-50wt oil in ALL my vehicles and change every 4000 miles ...or... once every fall..... ...Dell, the oily

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Dean

06-11-2005 17:58:37




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 Re: oil change in reply to Dell (WA), 06-11-2005 10:45:54  
Hey Dell: I've been considering switching to 20W50 from 15W40. Yes, I would rather use 20W in the winter and 40W in the summer but I do not put too many hours on my 51 8N and 55 860 so I change only once in the fall, usually around T'Giving after the season's work is done so as to have fresh oil over the winter. That said, I do occasionally use both tractors in cold weather, and will start them for the sake of starting about every 30 days or so even if I have no other reason to do so. I live near Cincinnati and it occasionally gets to 0 F or even colder here. When below 20 or so, they will groan but I know how to start them and they will almost always start even in single digits. I do not expect the effects upon cold weather starting of 20W50 will be noticable compared to 15W40 but expect that the summer hot engine effects might be significant. What think you? If memory serves, I believe that you live in Washington and expect it might not get so cold in the winter where you are, Pacific currents and all.

Got a couple of cases of 15W40 to use up, and always buy oil when on sale so do plan ahead. May start looking for 20W50, which is harder to find around here, especially at sale prices. Would appreciate your advice.

Respectfully, Dean

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R.M. In AL.

06-11-2005 15:39:35




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 Re: oil change in reply to Dell (WA), 06-11-2005 10:45:54  
I agree with Dell 20w50 can't hurt.Gets hot here in summer.Usually too hot for me.The old N does better than the old man...R.M. In AL.



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old

06-11-2005 11:13:10




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 Re: oil change in reply to Dell (WA), 06-11-2005 10:45:54  
Well Dell we both agree on the brand of oil. But I prefer there raceing oil, guess I just like to race my tractors LOL



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old

06-11-2005 10:14:51




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 Re: oil change in reply to peter4, 06-11-2005 09:50:24  
It would be ok just to drain the pan and leave the filter alone as long as its close to being new. I would stay with a detergent oil, other wise you may fine the engine getting gunked up inside. 30W would be good and if your where its really hot a 40W would also be good. Where I live its around 90 all summer or hotter and I run 40 or 50W in most of the tractors and cars that I have.



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Bryan in WI

06-11-2005 10:03:53




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 Re: oil change in reply to peter4, 06-11-2005 09:50:24  
Most guys say not to use multi-grade oil in these tractors, try straight 30W. -Bryan



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