outboard petrol in Cars?

rbmatthews said:
Its actually bioethanol derived from crops (maize mainly) - most petrol has had 5% for a while, but I think that it is set to increase to 10% (E10) soon if it hasn't already.
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What's the difference between ordinary ethanol and bioethanol ?
 
VicS said:
What's the difference between ordinary ethanol and bioethanol ?
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I don't think there is any difference chemically between bioethanol and ethanol - just where it is derived from, the first from some sort of plant biomass and therefore renewable, the second from fossil fuels and therefore not. But happy to be corrected, if it is not thread drift.
 
I found the ideal solution to this problem, put any old petrol in a hire car :)

Alternatively, mix with old oil and use for lighting bonfires.

BTW, despite what others may say, I have proof that petrol goes off. Not only does it go yellow, but replacing same allowed me to start a lawnmower that was otherwise dead.
 
nigelmercier said:
I found the ideal solution to this problem, put any old petrol in a hire car :)

Alternatively, mix with old oil and use for lighting bonfires.

BTW, despite what others may say, I have proof that petrol goes off. Not only does it go yellow, but replacing same allowed me to start a lawnmower that was otherwise dead.
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It goes off if not properly stored Ok.

lighting fires with petrol is a very dangerous and foolish thing to do. Its the vapour that causes the the problem and you and the can will be standing in the cloud of vapour when you strike the match.
 
Kind of depends on the relative value of the fuel and the car. Trying to save £20 of fuel in a £200 old banger sounds fine

Trying it in modern £20,000+ car with fancy catalyst and electronics sounds like a risk not worth trying for a tiny potential saving (and major potential cost)
 
VicS said:
The original question was about disposing of old 2 stroke outboard fuel !
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Vic, how long have you been on the forum? You should know by now that any post after about #5 bears no relevance to the original post, any resistance is futile. :-)

BTW as a hardened cheapskate even I wouldn't put oil polluted old fuel into my car, for the sake of a fiver I wouldn't take the chance...however remote the chances of any damage being done.
 
dunedin said:
Kind of depends on the relative value of the fuel and the car. Trying to save £20 of fuel in a £200 old banger sounds fine
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It's not so much a money saving thing, as a "how on earth do I dispose of this unwanted 2-stroke petrol?" thing. Practically every other means I can think of is either dangerous, environmentally destructive, illegal, or a mixture of all three. Tipping it into the car before setting off to the garage to refill the can with fresh petrol for the season is quick and easy.

Pete
 
Seajet said:
I have heard elsewhere from people I know are excellent engineers that modern unleaded petrol starts to jellify after about 3 months.
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Well, it should be easy enough to get some, stick it in a container for 3 months and see if they're right or not! I know I've had stuff for double that length of time in ordinary plastic petrol cans and it's not turned to jelly. it's been fine.
 
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