[Shop-talk] Electric String Trimmers

[John Innis]

Keep in mind that Low Lead Avgas, like 100LL, still has 4x the amount of
lead that standard automotive gas contained.  The guys who run this stuff
in race cars and the like often report issues with lead deposits on valve
stems and seats.  I have personally see a valve stem so leaded up that it
stuck open.  Use at your own risk.

On Mon, Aug 26, 2019 at 10:22 AM John Miller via Shop-talk <
shop-talk at autox.team.net> wrote:

> > I've brought aviation unleaded home from the airport and added
> > Sta-Bil for all the 4-cycle lawn equipment (lawn tractor, mower, snow
> > blower) for a couple of years.  Runs much better, though to be honest
> > the tractor doesn't care what gas is in it or how old.  17.5 HP
> > Kohler, about 1999.  I don't need Tru-Fuel for the 4-cycle stuff.
>
> It was probably blue, and it was probably 100LL.  Half the lead of most
> of the earlier grades, most everyone's pretty much still standardized on
> this.
>
> Some places and applications (warbird events?) you may find more heavily
> leaded super-sauce for your high-boost blown motors.  The reason the
> Merlin went from 800HP to 1700+HP in production was all that sweet,
> sweet American leaded 130-octane gasoline.
>
> John.
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