[AT] Diesel rated oi/ Gasoline powered engine?

[Mike M]

As an aside, I used to have a MF 255 with a Perkins engine that was as
cold blooded as could be. If it was below 45 F I had to plug the block
heater in for it to start. I switched to Rotella T6 5W40 and it would
fire without plugging it in down to about 30 degrees. YMMV

Mike M

On 5/26/2019 6:16 PM, Cecil Bearden wrote:
> If I was concerned about Rotella, I would pour in a bottle of Zinc
> Dithiophosphate it is recommended for flat tappet engines. Personally
> I use Mystic 15W-50 in all my later model engines.  The old Detroit
> 3-53 in the compressor uses Mystic 40W with Lucas Oil added.    Most
> of the older engines don't run hot enough to get the viscosity
> modifiers to activate.  Those need straight weight.   Any flat tappett
> engine that is used hard I use the zinc additive.
>
> Cecil
>
> On 5/26/2019 8:58 AM, Henry Miller wrote:
>> I should have Google first, looks like this oil doesn't have a s
>> rating. I'd not run the tractor until I asked shell. Probably it is
>> good enough, but they don't claim any rating and I'd want an oil
>> chemist to comment before trying anything. If you need to use the
>> tractor drain the oil and put in a sf rated diesel oil. Save the
>> drain oil for your diesel engines (you do have one?)
>>
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