Thank you Ravi for that bit of rationality. I find myself continually 
struggling with ethanol gasoline in my generators owing to the “scramble, 
scramble, scramble” nature of their application. Since they need to be ready to 
start whenever there's a non-trivial power outage, the procedure involving 
something like Trufuel would be a literal non-starter. I have enough trouble 
getting my caregivers to start my big generator semi-regularly. However, they 
have finally learned to keep the little one “dry” when not in use. I’ve also 
changed the procedures on the big generator so that shutdown is done by closing 
the fuel flow valve and running the carburetor “rich” instead of killing the 
ignition. That at least gives us a prayer of a restart.

 

From: BVARC [mailto:[email protected]] On Behalf Of Ravi Patrick Ratnala 
via BVARC
Sent: Monday, September 18, 2017 22:11
To: BRAZOS VALLEY AMATEUR RADIO CLUB <[email protected]>
Cc: Ravi Patrick Ratnala <[email protected]>
Subject: Re: [BVARC] Generator gas stabilizers

 

It's all about application, Keith.  Alcohol dragsters were designed to run on 
the stuff.  Modern fuel-injected engines were too (in particular, their fuel 
systems were, out of necessity, thanks to government mandates - but still).  I 
still use pump gas consisting of 10% ethanol in all my fuel-injected, daily- or 
semi-daily driven cars all the time, with no ill effects. 

 

But the problems caused by ethanol in older, or carbureted engines is 
extensively documented.  Simple devices like lawn mowers are less affected; 
they have very simple fuel systems, and far fewer parts susceptible to fouling.

 

One of the biggest problems is the hydrophilic nature of ethanol.  Put very 
succinctly, it kills the shelf life of gasoline.  In the "good old days," one 
could expect gasoline sitting in a tank to last a year or more.

 

In stark contrast, the 10% ethanol gasoline we get from our pumps today can gum 
up a constant-velocity carburetor's pilot jet in a matter of DAYS.  No kidding. 
 I have personally had freshly rebuilt carbs foul up after only two weeks with 
gasohol in them.  And I know many, many others who have also.  It's a problem 
so well known by the industry that it's the subject of daily yarns, and has 
been the proverbial shot-in-the-arm to the vintage bike industry.  My local 
bike shop buddy says it's the sole reason he's still in business - the constant 
need to rebuild carburetors gummed up by ethanol.

 

Your success story is perfectly reasonable to me, and is as should be expected. 
 As you say, your mowers are used "all of the time."  The problem with ethanol 
- provided a fuel system that tolerates it - is that when it absorbs moisture, 
it goes bad.  And since moisture is a quantity which is abundant in our local 
air, around here, it goes bad VERY quickly.





Fuel-injected engines tolerate this problem better by design; the fuel is 
delivered at high pressure, which assists in clearing gunk.  Carburetors rely 
on atmospheric pressure to push the juice into the airstream, which is just no 
match for the goo in the tiny orifices of pilot jets.

 

If I were still a young pup of 18 as I was when I started riding, I'd likely 
run pump gas - ethanol and all - in my bike today.  Because I'd run through the 
gas quickly, before it had a chance to gum up the works.

 

But I'm a weekend warrior at best now, with multiple carbureted toys, twisting 
a throttle on weekends if I have the time and the weather isn't too oppressive.

 

And because I don't own my own bike shop, or the funds to support one, 
ethanol-free is the only way to go.  For me.  :)

 

73,

KF5YHP


Sent from my iPhone


On Sep 18, 2017, at 9:13 PM, Keith Dutson via BVARC <[email protected] 
<mailto:[email protected]> > wrote:

What is wrong with alcohol in gas?  Everybody says it is bad.  Why?  What proof?

 

I have eight pieces of equipment using four-cycle gasoline engines.  Three are 
mowers used all of the time to keep the grass cut on most of the 16 acres here. 
 Pump gas is used in all of these engines.  The oldest mower is a John Deere 
265 lawn tractor.  I think it is a 1992 model.  It still runs great after 
purchase from Brookside Equipment, with no worry for alcohol in the gas.  I use 
fuel preservative in seldom-used equipment such as generators and pressure 
washers.  All of these have a fuel switch that is shut off at end of use, to 
let the gas in the carburetor run dry.  Leaving gas in a carburetor, allowing 
it to evaporate, leaves gasoline residue (lacquer) to build up over time and 
clog the carb and ruin gaskets.  One of my newer generators (Generac 7000 
Electric Start) has no fuel shut-off valve.  That one gets a double-dose of 
fuel preservative, hoping it will do better in the carburetor.  Generac assures 
me it will last a long time if run every month or two.

 

Has anyone heard of alcohol race engines?  Wonder why it is sometimes preferred 
to gasoline.  Again, what is bad about alcohol?

 

73, Keith NM5G

 

From: BVARC [mailto:[email protected]] On Behalf Of Robert Polinski via 
BVARC
Sent: Monday, September 18, 2017 6:03 PM
To: 'BRAZOS VALLEY AMATEUR RADIO CLUB' <[email protected] 
<mailto:[email protected]> >
Cc: Robert Polinski <[email protected] <mailto:[email protected]> >
Subject: Re: [BVARC] Generator gas stabilizers

 

I am amazed at the extremes Hams will go to save a nickle! You can get a can of 
Trifuel or VP at Home Depot , Northern Tool  or NAPA. Run the gas out of it and 
pour in the Trifuel. Run the engine for 5 min to be sure all the  gas is out. 
Unit already for storage. If you need to run it for several hrs, just use 
regular gas an repeat the steps when returning it to storage. Driving 50 miles 
to get gas is nuts. I know how it get the ethanol out of the gas, but 1 
accidental spark there goes the savings, your house, garage and maybe your 
life. All to save $10.00. Trifuel or it’s equivalent has no ethanol, MBTE or 
other compounds . I am not aware of the content of the fuel from the other 
outlets. I  Assume it is a form of white gas with some  octane booster. By the 
way, I have pressure washer and a generator that I only use once or twice a 
year, this is how I store them, they never fail to start. One additional note, 
Trifuel and the like are high in volatiles and will evaporate out of the fuel 
tank.  Make sure you shut the air breather on your fuel tank (if it has one) or 
use a rubber gasket on the fuel lid, otherwise you may not have fuel in the 
tank in a year, but you will not have any Gum  or varnish. Robert KD5YVQ 

 

 

 

 

 

From: BVARC [mailto:[email protected]] On Behalf Of George Cofran via 
BVARC
Sent: Monday, September 18, 2017 5:28 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB <[email protected] <mailto:[email protected]> >
Cc: George Cofran <[email protected] <mailto:[email protected]> >
Subject: Re: [BVARC] Generator gas stabilizers

 

Curious to see how you do this. Thanks much.

 


Best Regards,

 

George L. Cofran, KD5LXW

 

9242 RR 1320, Johnson City, TX 78636

Cell: 281-300-7177, Email:  <mailto:[email protected]> 
[email protected]

President, Cofran & Associates, Inc:  <http://www.cofran.com/> www.Cofran.com . 
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On 9/18/2017 at 3:14:29 PM, Ravi Patrick Ratnala via BVARC < 
<mailto:[email protected]> [email protected]> wrote: 

I remove the ethanol myself from the gasoline I use in my generators, 
motorcycles, etc (i.e., anything with a carburetor).  My method tends to start 
a controversy every time I mention it, so email me privately if you're 
interested.  For what it's worth, it's based on science, and it's worked 
beautifully for me for a few years now.  Of course, no warranties or 
guarantees, express or implied.

73,
KF5YHP

Sent from my iPhone

> On Sep 18, 2017, at 2:55 PM, Jim via BVARC < <mailto:[email protected]> 
> [email protected]> wrote:
> 
> Gentlemen,
> I know I could be opening a can of worms, however, a few weeks ago there was 
> a thread about generator fuel additives, stabilizers and most importantly gas 
> without ethanol additives. Can I get someone to refresh me as to where to get 
> this type of gas locally please.
> Thank you,
> Jim Stimson 
> NR5ED 
> 
> Sent from my incredible communication device 
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