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Tractor Talk Discussion Forum

9n

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danny9n

02-21-2007 05:31:22




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I have a 1939 ford 9n.
can i use 40 wt. synthetic oil in it.




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buickanddeere

02-21-2007 12:40:45




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 Re: 9n in reply to danny9n, 02-21-2007 05:31:22  
Careful putting synthetic oil,premium fuel and running a chrome stack on that 9N. She'll out do a TM190.



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Bill(Wis)

02-21-2007 19:58:43




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 Re: 9n in reply to buickanddeere, 02-21-2007 12:40:45  
The V8 conversions go beyond the old flatheads. There are guys with some really big stuff under those little hoods. Twin straight up chrome pipes and GOD ARE THEY LOUD! Horsepower wise they have to be in the neighborhood of a TM190.



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al bane

02-21-2007 09:28:15




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 Re: 9n in reply to danny9n, 02-21-2007 05:31:22  
I agree with OLD, I would use regular oil--10w30.I still like that Lucas oil treatment.



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old

02-21-2007 07:51:39




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 Re: 9n in reply to danny9n, 02-21-2007 05:31:22  
Well unless its a brand new rebuild my self I would not because it will brake things loose that have been in there for who know how many years and may clog up oil lines, filter, and just plain all around clog up stuff because of the sulge etc. thats going to be in there from 50 plus years of being used



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al bane

02-21-2007 07:10:34




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 Re: 9n in reply to danny9n, 02-21-2007 05:31:22  
Danny, also you may want to use a quart of LUCAS oil treatment with your oil. I'm not sure if you can use it with synthetic oil. great stuff



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Bob

02-21-2007 06:58:08




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 Re: 9n in reply to danny9n, 02-21-2007 05:31:22  
First of all, if you decide to do this, YOU have to accept responsibility for it. DON'T blame ME ot the oil company. Folks have written to oil makers, and been told it's NOT recommended. IMHO, the oil companys say this so as not to have every leak and problem that EVER happens to a 50+ year-old machine blamed on them!

IF the engine is badly worn, or has leaky seals or gaskets, it MAY use/burn more oil as the synthetic will tend to clean up carbon, crud and gook that have built up, and may be sealing the piston rings in their grooves, and the gaskets and seals.

They will tell you the seals and gaskets will be DAMAGED by the syn oil. Well, the gaskets don't give a darn, and the rope seals on the crankshaft won't be affected one bit, EXCEPT built up varnish and crud will be cleaned off, possibly making them leak, IF they are already "bad".

If the engine is in good shape, no excessive wear or leaks, or massive sludge buildup in the crankcase, it will LOVE the synthetic oil.


I run synthetic in several old vehicles and tractors for easier starting in COLD northern ND, and have NEVER had a problem or complaint.

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AL BANE

02-21-2007 06:52:54




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 Re: 9n in reply to danny9n, 02-21-2007 05:31:22  
I didn't answer your question about synthetic oil. I would use 10w30 synthetic oil. I'm a firm believer in synthetic products.



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alan bane

02-21-2007 06:49:25




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 Re: 9n in reply to danny9n, 02-21-2007 05:31:22  
Why do you use such a heavy weight oil. The book calls for 30 weight if the temp is above 90 degrees, 20 weight if the temp is between 90 and 10 degrees and use 10 weight if the temp is between +10 and -10 degrees and 5 weight if the temp is less than -10. I use 10w30 and this takes care of all temperatures. 40 WEIGHT IS TOO HEAVY.



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