[AT] cold weather woes

[Stephen Offiler]

Not sure about Ralph's situation up in Canada, but in the Lower 48, we
definitely get different gasoline blends summer vs winter:

https://blog.caranddriver.com/the-vapor-rub-summer-versus-winter-gasoline-explained/

Lower vapor pressure in the summer, higher in the winter, with regional
differences to complicate the matter, as explained in the link.  But
basically everywhere, summer gas doesn't vaporize well at cold temperatures
and creates difficulties.

I've seen problems firsthand in several of my small gasoline engines.  Best
example is my DR Mower with 17HP Kawasaki twin.  It has a 30 inch brush
deck that sees frequent use in summer, and I also have a snowblower
attachment for it that sees frequent use in winter, but almost no useage
spring or fall.  That first snowstorm, I can be nearly certain there's
summer gas in the tank, and it cranks, and cranks, and cranks, eventually
starting, sometimes requiring a whiff of propane.  With known winter
gasoline, it runs pretty much like it should.

I tend to believe that bulk delivery fuel is whatever they're pumping on
that day down at the gasoline depot.  Main reason for thinking that is the
fact that this whole gasoline summer/winter situation is strictly governed
by federal law.

SO


On Sat, Jan 20, 2018 at 8:38 PM, Al Jones <farmallsupera1 at gmail.com> wrote:

> I have had zero, nada, not one issue with ethanol.  Everything around
> here is around 10%.  I checked the Cub the other day, the gas has been
> in it since the spring and is starting to stink, but the Cub runs
> fine.  Was taking it to a plow day last weekend to burn it out, but we
> got rained out.... ;(
>
> Al
>
> On Sat, Jan 20, 2018 at 10:20 AM, Cecil Bearden <crbearden at copper.net>
> wrote:
> > Here in the south, it gets so hot that all the easily vaporized
> > additives get burned off in the summer, and all we have left is the
> > water and the surfactant they use to make the water mix with the gas.
> > Water is mixed to lower combustion temp so oxides of Nitrogen etc are
> > not formed.  It also lowers the power output of the engine.    They have
> > forced us to go to diesel.   Diesel is my favorite, but with the removal
> > of sulfur, the injection pumps are going to crap.  I add 1gallon of
> > synthetic 2cycle oil to each 250 gallons of diesel when I get diesel
> > delivered.
> >
> > Cecil in oKla.
> >
> >
> > On 1/20/2018 8:34 AM, Ralph Goff wrote:
> >> On 1/20/2018 7:45 AM, Henry Miller wrote:
> >>> The gas they fill bulk tanks with is different from what you get at
> the pumps in town. Bulk tanks often are not filled more than every few
> years so the gas has to last. Gas stations get filled weekly (often every 5
> days), and car owners generally full twice a month so they figure if pump
> gas lasts 2 months that is plenty good. For cars it is, but for small
> engines it isn't.
> >>>
> >>> Nothing todo with ethanol, except that because ethanol is high octane
> they can mix lower octane cheap gas in and still get the ratings they need.
> >>>
> >> I'll have to check with my brother, the fuel delivery driver. As far as
> >> I know it all the same gas here. Farm gas/diesel or pump gas in town.
> >> All comes out of the same truck and
> >>
> >> the only difference is the price, depending on which tank it goes into.
> >>
> >> Ralph in Sask.
> >>
> >>
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