<HTML><HEAD></HEAD>
<BODY dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>There wasn’t much if any zinc additives in motor oil until the 1950s,
probably late 50s. Tractor engines had already been getting along fine
without it. The die-hards that insisted on non-detergent oil never had any
zinc in their oil. Honestly, anything you find today labeled “motor oil”
will be better than that.</DIV>
<DIV> </DIV>
<DIV>You should keep fairly close to the original viscosity
recommendations.</DIV>
<DIV> </DIV>
<DIV>Jim Becker</DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV style="FONT: 10pt tahoma">
<DIV><FONT size=3 face=Calibri></FONT> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=dsteinich@gmail.com>David
Steinich</A> </DIV>
<DIV><B>Sent:</B> Sunday, May 26, 2019 12:04 PM</DIV>
<DIV><B>To:</B> <A title=at@lists.antique-tractor.com>Antique Tractor Email
Discussion Group</A> </DIV>
<DIV><B>Subject:</B> Re: [AT] Diesel rated oi/ Gasoline powered
engine?</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<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>
<DIV> </DIV>
<DIV>Dave </DIV></DIV>
<DIV> </DIV>
<DIV class=gmail_quote>
<DIV class=gmail_attr dir=ltr>On Sun, May 26, 2019 at 11:50 AM Carl Gogol
<<A>cgogol1971@gmail.com</A>> wrote:<BR></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0px 0px 0px 0.8ex">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
target=_blank>at-bounces@lists.antique-tractor.com</A>> On Behalf Of Henry
Miller<BR>Sent: Sunday, May 26, 2019 9:52 AM<BR>To: <A
target=_blank>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
target=_blank>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>> AT mailing
list<BR>> <A target=_blank>AT@lists.antique-tractor.com</A><BR>> <A
href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com"
rel=noreferrer
target=_blank>http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</A><BR>><BR>_______________________________________________<BR>AT
mailing list<BR><A target=_blank>AT@lists.antique-tractor.com</A><BR><A
href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com"
rel=noreferrer
target=_blank>http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</A><BR><BR>_______________________________________________<BR>AT
mailing list<BR><A target=_blank>AT@lists.antique-tractor.com</A><BR><A
href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com"
rel=noreferrer
target=_blank>http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</A><BR></BLOCKQUOTE></DIV>
<P>
<HR>
_______________________________________________<BR>AT mailing
list<BR>AT@lists.antique-tractor.com<BR>http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com<BR></DIV></DIV></DIV></BODY></HTML>