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Thread: Petrol type for old outboards
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17th September 2011, 11:45 AM #16.
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Fibreglass I agree, but plastic I doubt it. Almost all whipper-snipper and chainsaws sold these days including the name brands have plastic tanks. If there was a any problem with this it would have shown up on international chainsaw forums especially in countries where ethanol has been used for some time. I have been a member of the international Arboriste site chainsaw forum (60,000 members, 1,400,000 posts) since 2007 and do not recall a single problem being reported about this. There are other issues reported using ethanol, or issues specific to plastic tanks cracking or splitting whether using ethanol or not.
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17th September 2011, 11:35 PM #17
Hi Bob,
There are plastics and plastics, and he was asking about old motors. I am basing my info on experiences in the 1970s when I was in a country where they put 15% ethanol in the fuel to make it go farther. My brother in law did in his General Motors V6 Z drive and a lot of cars had plastic fuel lines and carburettor floats de-solve. The floats were rather interesting as older car had brass ones and some makes and new cars (of the time) had a plastic that was OK and they were available for the cars that were affected.
Might be something to keep in mind with Gerry cans now that we don't know who made them and what they have used.
RegardsHugh
Enough is enough, more than enough is too much.
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18th September 2011, 04:53 PM #18
Ethanol has a lower calorific potential than unleaded petrol and i would never consider using it in an outboard, (THE SEA IS UNFORGIVING)
I use Standard ulp for my +10Hp Tohatsu and it starts reliably every time and I get reasonable economy, I do believe that 95 octane would probably improve power slightly , but I doubt it would be enough to warrant the extra cost,.
Jeff
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