[AT] Diesel rated oi/ Gasoline powered engine?

[Mark Johnson]

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.

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.

Disclaimer: My dad's baby sister was married to a Shell jobber, but we 
paid the same price as everybody else :-).

Mark J
Columbia, MO
Southern Indiana farm boy now working at the big university :-)

On 5/26/2019 12:04 PM, David Steinich wrote:
> 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.
> It's also a lot easier to just have two oils on the shelf.
>
> Dave
>
> On Sun, May 26, 2019 at 11:50 AM Carl Gogol <cgogol1971 at gmail.com 
> <mailto:cgogol1971 at gmail.com>> wrote:
>
>     Henry-
>     Unfortunately, the oil I used is not rated S anything.  How does
>     that change
>     your answer?
>     Carl
>
>     -----Original Message-----
>     From: AT <at-bounces at lists.antique-tractor.com
>     <mailto:at-bounces at lists.antique-tractor.com>> On Behalf Of Henry
>     Miller
>     Sent: Sunday, May 26, 2019 9:52 AM
>     To: at at lists.antique-tractor.com <mailto:at at lists.antique-tractor.com>
>     Subject: Re: [AT] Diesel rated oi/ Gasoline powered engine?
>
>     Read closely, most diesel rated oils are rated up to sf or
>     something like
>     that. The s stands for spark ignition, and the f is the revision.
>     If it has
>     a s rating at all it is better for your engine than a more modern
>     sj rating.
>     Because of emissions Car engine manufacturers have been unable to
>     get the
>     older additives needed by your tractor to work and have had to
>     change their
>     bearings to get an oil that lubricates without destroying
>     emissions. Diesel
>     engines have different considerations and still have those additives.
>
>     Bottom line, in all antique gas engines I start in the diesel oil
>     section
>     and then find one with a gas rating.
>
>     --
>       Henry Miller
>     hank at millerfarm.com <mailto:hank at millerfarm.com>
>
>     On Sun, May 26, 2019, at 8:39 AM, Carl Gogol wrote:
>     > Without thinking, I just drained my "new" 1968 IH-140 and filled it
>     > with Rotella 15W-40 T4 Diesel rated oil.
>     > It is one of those "All Fleet" oils and I  was easily led astray by
>     > that slogan.  Of course I carefully read the label once the jug
>     was empty.
>     > What would you do?  Drain and replace or leave it in and replace it
>     > next year?  Are the additives all that different?
>     > The IH 140 is an old state road clipper with a side mount
>     "HydroClipper"
>     > sickle bar mower.  The engine sounds really tight and absent of any
>     > sounds common from a long used engine.  It will probably get
>     less than
>     > 20 hours use in a year.
>     > Carl in rainy Mallkus NY
>     >
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