markviii wrote:I heard things like that are frowned on in NJ...
... but this is one thing they got right believe it or not.
markviii wrote:By hi-test do you mean pump gas or race fuel? If it is leaded race fuel I would be careful about burning it in anything with O2 sensors of catalytic converters. A small amount probably wouldn't have a big impact, but why chance it if you have a lawn mower to burn it off? I would add some fresh gas to it and try to burn it up in the mower.
The cautions you called out are good ones to keep in mind when mixing old gas in with good I'd add that some time in the past they used MBTE to raise the oxygen level in gas blends (thank to the feds & the Clean Air Act). This stuff was real nasty and just loved anything with water moisture in it: soil, concrete, stone ... After a rain it washes down into the soil and keeps on going. I've seen residential well test that have low MBTE levels when the owners have never dumped gas on their properties. Knowing this, all I ever done to get rid of old gas is to slowly blend it off into the truck. I've blended it off into my MF10 garden tractor when I know I'll be mostly emptying out the tank mowing the lawn but I top off when finished mowing with fresh gas (and Stabil) and leave it run for a few minutes. I've even done this with old 2-stoke mix and no problems.