On Jan 29, 6:43pm, Daniel J. Dasaro wrote:
} I want to drain the 4 yr old stuff in my car before I start it up
} with those clean carbs I recently rebuilt. I have about 5 gals.
I didn't used to worry too much about old petrol, but I think modern
blends don't stand up as well to sitting around. In the past, I've
run 2-3 year old fuel with no real problems. This spring, when
I got an engine into my sprite, I fired it up and ran it on the 2 year
old stuff in the tank. This didn't burn as well as desired, and managed to
quickly coat the valves with a layer of varnish. (I pulled the head back
off shortly thereafter for other reasons, and cleaned everything up.)
I drained the tank, and ran the old fuel through the lawn tractor, which
wasn't much happier. The float valve stuck in very short time.
So, if you're starting a car which has been stored for much more than
a year, think about fresh petrol first.
--R. Garnett, Esq.--
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