[AT] Synthetic Oil

[Cecil Bearden]

I had forgotten about the need for ZDDP in the small engines. The cam 
followers are just flat metal.  I have a box of Lucas oil ZDDP 
additive.  Will start using it.  I will note that I made the mistake of 
mixing Lucas break in oil additive in my 2 cycle gas/oil mix once.   It 
was one of those things you do when in a hurry and not using glasses to 
read the label.   Both bottles were the same design just thew writing 
was different.   The engine ran about 10 minutes then died.  No real 
harm done, it just shorted the spark plug from the deposits on the 
electrode.   The engine was on one of those 2 cycle pumps that Northern 
Hyd sells.  Still runs just fine..

Cecil in oKla


On 11/13/2016 6:38 AM, Stephen Offiler wrote:
> I run oils labeled "Motorcycle Oil" in all of my small gasoline engines.
> These oils are the older SF/SG service rating, which has signficantly more
> ZDDP additive than the most modern oils (service rating SN).  ZDDP is an
> extreme-pressure sliding-friction additive that was removed because it
> clogs catalytic converters.  There are certain motorcycles, for example BMW
> boxer twins, that require SF/SG and they will wear cam lobes more rapidly
> if modern oil is used.  Typically found in 10-30, 10-40, and 20-50.  I use
> 10-40 in everything but if it gets really cold the 10-30 would be a better
> choice.  As for synthetic, probably no reason for it.  Synthetic flows
> better at extremely cold temperatures (like for example -10F)  and resists
> breakdown at extremely hot temperatures (like for example in small
> turbocharged engines).
>
> SO
>
>
> On Sun, Nov 13, 2016 at 5:40 AM, Steve W. <swilliams268 at frontier.com> wrote:
>
>> Dick Day wrote:
>>> Dave, as you can tell, I know nothing about motor oils.  The little bit
>>> that I've read and heard, leads me to believe that synthetic oil is
>> better
>>> for the engines.  I am currently using synthetic in the Husqvarna/Briggs
>>> because the dealer I ordered it from suggested that when I did the 5-hour
>>> oil change that I replace it with synthetic.
>>>
>>> Is there a reason to not use it?
>>>
>>> Thanks
>> If you do regular oil changes conventional oils are fine. I run
>> conventional 10W-30 in most of the small engines, I run 15w-40 in the
>> diesel.
>>
>> I run synthetic in both generators because it seems to work better when
>> very cold.
>>
>>
>> --
>> Steve W.
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