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<p>I don't know how much the formula might have changed, but from
the early 1970's through when my dad left the farm in the mid
2000's, we ran Rotella T 15W-40 in a JD 620, 2 730's, an IH 300,
AC 190XT, 210, and 8030, several pickup trucks and Gleaner
combines, and heaven-only-knows how many cars, including mine
(Chevy 350 V8). Never had a lubrication-related failure that I can
remember. We bought the stuff by the barrel; usually had two of
them around - one at each farm, 14 miles apart. The only reason I
no longer use it is that today's cars recommend 5W-20 or 5W-30
viscosity.<br>
</p>
<p>The only exceptions were the JD H and A, where we used "Golden
Shell" non-detergent SAE 20 or 30, depending on time of year.</p>
<p>Disclaimer: My dad's baby sister was married to a Shell jobber,
but we paid the same price as everybody else :-).</p>
Mark J<br>
Columbia, MO<br>
Southern Indiana farm boy now working at the big university :-)<br>
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<div class="moz-cite-prefix">On 5/26/2019 12:04 PM, David Steinich
wrote:<br>
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<div dir="ltr">I've started using the Rotella T-4 15W-40 in all my
tractors that I don't expect to work in the winter. Haven't been
doing it long enough to see if there are any damaging effects
though. I have read about the additives like Henry mentioned -
specifically zinc and how it is bad for catalytic converters,
but good for our old valve lifters.
<div>It's also a lot easier to just have two oils on the shelf.</div>
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<div>Dave </div>
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<br>
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<div dir="ltr" class="gmail_attr">On Sun, May 26, 2019 at 11:50
AM Carl Gogol <<a href="mailto:cgogol1971@gmail.com"
moz-do-not-send="true">cgogol1971@gmail.com</a>> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Henry-<br>
Unfortunately, the oil I used is not rated S anything. How
does that change<br>
your answer?<br>
Carl<br>
<br>
-----Original Message-----<br>
From: AT <<a
href="mailto:at-bounces@lists.antique-tractor.com"
target="_blank" moz-do-not-send="true">at-bounces@lists.antique-tractor.com</a>>
On Behalf Of Henry Miller<br>
Sent: Sunday, May 26, 2019 9:52 AM<br>
To: <a href="mailto:at@lists.antique-tractor.com"
target="_blank" moz-do-not-send="true">at@lists.antique-tractor.com</a><br>
Subject: Re: [AT] Diesel rated oi/ Gasoline powered engine?<br>
<br>
Read closely, most diesel rated oils are rated up to sf or
something like<br>
that. The s stands for spark ignition, and the f is the
revision. If it has<br>
a s rating at all it is better for your engine than a more
modern sj rating.<br>
Because of emissions Car engine manufacturers have been unable
to get the<br>
older additives needed by your tractor to work and have had to
change their<br>
bearings to get an oil that lubricates without destroying
emissions. Diesel<br>
engines have different considerations and still have those
additives. <br>
<br>
Bottom line, in all antique gas engines I start in the diesel
oil section<br>
and then find one with a gas rating. <br>
<br>
--<br>
Henry Miller<br>
<a href="mailto:hank@millerfarm.com" target="_blank"
moz-do-not-send="true">hank@millerfarm.com</a><br>
<br>
On Sun, May 26, 2019, at 8:39 AM, Carl Gogol wrote:<br>
> Without thinking, I just drained my "new" 1968 IH-140 and
filled it <br>
> with Rotella 15W-40 T4 Diesel rated oil.<br>
> It is one of those "All Fleet" oils and I was easily led
astray by <br>
> that slogan. Of course I carefully read the label once
the jug was empty.<br>
> What would you do? Drain and replace or leave it in and
replace it <br>
> next year? Are the additives all that different?<br>
> The IH 140 is an old state road clipper with a side mount
"HydroClipper"<br>
> sickle bar mower. The engine sounds really tight and
absent of any <br>
> sounds common from a long used engine. It will probably
get less than <br>
> 20 hours use in a year.<br>
> Carl in rainy Mallkus NY<br>
> <br>
> _______________________________________________<br>
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