[AT] aid please

[Cecil Bearden]

Fergusons use 90wt PMO (pure mineral oil), or otherwise called GL-1

I respectfully disagree with the use of multi-grade oil in the old 
tractors.  I recently read a report from a group of ASAE engineers who 
studied the multi grades versus the straight weights. Seems that the 
late engines run hotter and they can get the viscosity improvers to work 
at the higher temperatures.  The older engines did not run as hot. 
Unless the radiators were plugged, or the cooling syste had a lot of 
rust etc. etc.

I have always used 30wt in my old ones, My 04 Case JX85 requires 
multi-grade, so I am using 15-40 Mystic.  I use Conoco Fleetgaurd 30W in 
everything else.  I have 2 ford vehicles with the 5.3 liter that reqires 
5W20 oil.  If I use that thin stuff, I have to add a quart every 500 
miles.  If I use 15-40, they run fine and do not knock when cold etc.. 
It is warmer here down in OK, so that may be the reason I get by with it.

Cecil in OKla

charliehill wrote:
> John what you use in the engine depends on a couple of things.  If the 
> engine has never been rebuilt (doubtful) and has always had non-detergent 
> run in it then you might need to stick with it.  If the engine is in good 
> shape and not all gummed up inside and if it were mine I'd run a multi-grade 
> modern oil like 15-w40 or 20-w50.  If it is recently rebuilt and tight I 
> might run 10-W30.  I'm sure someone will disagree but all my 50's vintage 
> tractors run multi-visc. detergent oil.
> 
> One of the fergie guys will have to help you with the rear end and 
> hydraulics.
> 
> Charlie
> ----- Original Message ----- 
> From: "John Dunlap" <jsdunlap at roadkill.org>
> To: <at at lists.antique-tractor.com>
> Sent: Saturday, November 07, 2009 6:53 PM
> Subject: [AT] aid please
> 
> 
>> I own a '51 Ferguson. Could someone tell me what weight oil I need to use 
>> in
>> differential and also do I use plain ol' hydraulic fluid with this engine?
>> I assume (sp) that I should use non-detergent 40 weight for the crankcase?
>>
>> Thanks,
>>
>> John Dunlap
>> "the new guy"
>> -- 
>>
>>
>> "Democracy must be something more than two wolves and a sheep voting on 
>> what
>> to have for dinner."
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