What to do with old gasoline?

GTXVette wrote:

gearheadmb wrote: It is an excellent weed killer.

It Kills Kudzu and any other weeds in the way. If you love your lawn Mower you won't use it in it. and then get Non-Ethanol gas for your mower.

Which points out an interesting consideration.

People blame the fuel because mower and other lawn equipment isn't robust to E10 fuel (which they should be, IMHO), but apparently they are robust to old fuel... hmmm.

Still- I put what I thought was 20 year old fuel that sat in an open steel tank into my Ranger, and it ran fine. Just filtered out the sediments.

In reply to alfadriver:

I run everything through my lawn mower, which is an inexpensive push mower. I don't worry about what goes in it very much because I mow the lawn until I run out of gasoline. Ethanol mostly causes problems if it sits around.

In reply to Brett_Murphy:

I never had problems with E10 sitting for over years. While I understand others are, I don't blame the fuel as much as I blame the manufacturer. It's not as if E10 is some kind of secret or surprise. It's that they are too cheap to be robust to it like others are.

Only issue I've ever had with E10 (or E15) is that I get worse gas mileage. It was actually a noticeable difference when I was driving a car form 1991.

In reply to mtn:

If you are getting worse that 5% loss, there something else wrong. Last I checked, it's about a 3% loss of energy content in E10.

Last time I did a fuel pump I drained the tank of old fuel in jugs and ran my mower fine for almost 3 years

alfadriver wrote: In reply to mtn: If you are getting worse that 5% loss, there something else wrong. Last I checked, it's about a 3% loss of energy content in E10.

It was E15, not E10. Or maybe it was E10, but the labels all said "Up to 15% ethanol". Remember that this was a heavy corn state, in a heavy corn county.

No clue what the percentage was now--this was 8 years ago now (wow, sadface). I remember it being significant in that car, as well as an acquaintances 1977 Granada--and he had a ton of data on it (5k miles or so). Mine was just a few tanks.

I do remember never being able to get noticeable results in the 04 Corolla or the 02 SAAB in the comparison. The 99 Miata had a noticeable, but negligible difference.