Hybrid Car – More Fun with Less Gas

Home grown and processed diesel fuel - Page 3

register ::  Login Password  :: Lost Password?
Posted by Frank on August 22, 2009, 1:40 pm

Bruce Richmond wrote:

Yes, basically, with biodiesel you shorten the fatty oils chains by
2/3rds by ester exchange of glycerol for methanol and that lowers
viscosity which is particularly important to do in cold climates.
Dilution with gasoline does this but I would imagine too much would
increase the octane level which is something you do not want with
diesel.  What works for the farmer is something I would not try if I had
a diesel car.  Look at the mess caused by adding ethanol to gasoline.  I
learned a lesson this past year leaving stabilized gasahol in my snow
thrower which attacked seals causing need for dealer to fix.

Posted by Bruce Richmond on August 22, 2009, 5:53 pm

I don't think you need to worry about raising the octane level too
high.  There will still be plenty of long carbon chains in the mix.
They are what cause the combustion to get going as they break up due
to the heat of compression and release more energy.  I know that in a
high compression gasoline engine even a tiny bit of oil getting past
the valve seals will cause detonation.

The comments about gasahol are worth noting.  The OP said to mix
"regular gasoline" with the sunflower oil.  In the US these days that
would be gasahol, but that doesn't apply everywhere.  IMO gasahol
should have been offered as an option, but certain control freaks like
to make choices for us.

Posted by vaughn on August 22, 2009, 6:11 pm

   If you must have alcohol-free gas, you can get it at any airport that
caters to piston airplanes.  A few might even still have non-gasohol auto
gas (since some smaller planes are approved to burn it).  Don't expect it to
be cheap though!


Posted by Bruce Richmond on August 22, 2009, 11:33 pm


When I wrote that gasahol should have been offered as an option I
meant for road going vehicles.  The control freaks pushed it on us
despite the fact that it can cause major problems for some vehicles.
Anything that sits for extended periods, snow throwers, lawn mowers,
motorcycles, boats, are most suseptable to damage.  As Frank mentioned
plastic or rubber parts can be attacked.  Also the ethanol absorbs
water out of the air.  When it has absorbed enough it sometimes
seperates out and goes to the bottom of the tank.  There the water
causes rust to form.  It is even worse for two strokes since the water/
ethanol mix contains no oil.  So if you do manage to start the engine
it doesn't get proper lubrication and will seize.  IMO they should
have allowed the continued sale of pure gasoline at the pump with a
slight surcharge to encourage the use of gasahol.

I am aware that alcohol-free gas is available at the airport.  You can
also get it at places that sell race gas.  You just have to pay a
whole lot more than you would if it was still offered at the pump.  I
can get leaded 110 octane for $/gal or at the track 98 octane
unleaded (just like they use in NASCAR, oh wow ;) for $/gal.


Posted by Daniel Who Wants to Know on August 23, 2009, 8:41 pm

E10 is an option in Iowa still luckily.  Here E0 (non ethanol) is 87 octane
and E10 is 89 and 91 octane. E0 87 is 10 cents more expensive per gallon
than the E10 89.  There is one full service station here (Bratz Shell) that
the 89 is always 1 cent higher price so the E0 is only 9 cents more

I personally won't run ethanol blend in anything I put fuel in and that
includes my '95 Dodge Grand Caravan.  I am around lots of stuff that you
aren't supposed to put ethanol in though so it is easier to always use the
non ethanol stuff. Things like old farm tractors, 2 stroke outboard boat
motors, my push mower, etc.

This Thread
Bookmark this thread:
  • Subject
  • Author
  • Date
please rate this thread