[AT] Engine oil

[John Hall]

I'm in central NC. Last year we had a heat wave in October when I was 
cutting corn--seriously, it hit 100 for a few days.  I still run 30W in 
everything except auto's.

John Hall


On 8/15/2020 10:17 PM, Cecil Bearden wrote:
> John I don't know what part of the country you are in, but here in hot 
> and humid Oklahoma, I use straight wt oils in everything built before 
> 2000, and multigrade for the rest.  I studied this a ferw years ago 
> and what I learned was that multi grade is oil that has the wt of the 
> lower number with viscosity improversto make it test to the upper wt 
> when hot.  However, our older engines don't run as hot as these later 
> models.  The difference between 170 degrees and 200 is a lot when 
> using multigrade oils.   I changed the oil in my Ingersoll 250 cfm 
> compressor w/ 3/71 Detroit.  I used 15W50 Mystic, I have used this 
> brand for years.  It was ok in the winter, but when it was 90degrees 
> outside, It started knocking at idle, I couldn't hear it when running 
> at load, so no telling how much damage it may have done.  I replaced 
> it with 40wt and 2 qts of Lucas oil and it sounds ok now.  Still 
> starts in winter too. I think that if the water temp runs at 170, then 
> straight wt oils are to be used.  If ti is hotter than multigrade.  
> Here in the hot south, 10W oils are just too thin to start with..
> Cecil
>
>
>
> On 8/15/2020 11:57 AM, John Hall wrote:
>> What this group needs (in my opinion) is a good farm equipment 
>> discussion.
>> Engine Oil--but wait, this isn't your ordinary oil discussion!!! Long 
>> story short, I have a fleet of old gas powered working FARM 
>> equipment--not talking about lawn equipment. We have always ran big 
>> name brand oil. I switched from Exxon Super HDII about 3-4 years ago 
>> because it was getting really hard to source. I switched over to 
>> Chevron Dello 400 (both are 30W). The Dello is formulated for 
>> diesels, but supposedly works in older gas engines. I now have 2 
>> engines that drink oil when being worked hard. My Farmall M can drop 
>> 2-3 qts in a couple hours of pulling a cultimulcher--yet you don't 
>> really notice it smoking. It does foul plugs. That work is a very 
>> heavy load. Also I have a 3300 Deere combine that will drop a qt or 
>> so every truckload of corn. Now I've only had this combine about 8 
>> years and the oil consumption just started about 3 years ago--I swear 
>> some days it is worse than others. I really wonder if its the oil I'm 
>> using. I have on hand some CaseIH low-ash oil I run in 
>> lawnmowers--considering putting it in the combine for this fall. 
>> Supposedly the same stuff IH has been selling for 40+ years. The cost 
>> is about $3-4 more a quart, so an extra $25 to change oil. For the 
>> record, the rest of the gas powered fleet doesn't run hard/long 
>> enough to notice a problem. The combine is such a gas hog, can't help 
>> but wonder if its a fuel issue causing dilution.
>>
>> What you guys think, worth a shot?
>>
>> John Hall
>>
>>
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