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YOUR RESEARCHFuel hoses after 25 years...
Reported or suspected cause
hoses not withstanding 10% ethanol
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Reported cause · Original poster
I am worried since a friend's Boxster illuminated while driving and it was the old hoses not withstanding 10% ethanol...
Leading evidence: 'hoses not withstanding 10% ethanol' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'hoses not withstanding 10% ethanol' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace 'rubber' fuel hose only if' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
I would just pay for fuel that has 0-5% ethanol and replace 'rubber' fuel hose only if and when leaking.
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Suggestion · Original poster
Should we replace our fuel hoses with the updated ISO/SAE recommendations now that fuels have 10%-15% ethanol.
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Should we replace our fuel hoses with the updated ISO/SAE recommendations now that fuels have 10%-15% ethanol. And if yes, which one should we focus?
I am worried since a friend's Boxster illuminated while driving and it was the old hoses not withstanding 10% ethanol...
Thanks
Illuminated as in 'caught fire' or just a check engine light that lit up?
I would just pay for fuel that has 0-5% ethanol and replace 'rubber' fuel hose only if and when leaking.
The plastic (=PA12) hard lines I would not worry about.
All of the nylon hoses that r external to the fuel sender do not need replaced. There is a rubber hose off the fuel pump in the tank on c4(s) that can split.
Over here, selecting non ethanol fuel is not an option. In Europe is it 5-10% bioethanol now and it might increase to 15... Most countries are at 10%> According to this magic
Fuel Quality Directive 2009/30/EC
)...
No only the gt3 in a 2wd config. The saddle tanks have a venturi pick up for the other side of the tank and the rubber line is part of the spiderweb of hoses to make it happen. The updated senders have a accordian nylon hose instead. The gt3 has a similar secondary venturi pick up because race car.
You have the option in that choosing the >99 RON fuel from any of the oil companies typically does not have any ethanol in it. They state it
may
contain up to 5% of ethanol but in reality it has zero.
Check which of the available top tier brands don't add ethanol to make sure and use that.
Will you enlighten us/me what you meant by 'illuminated' in your opening post?
I mean the car caught fire. In my country we don't have the option of non ethanol. Even shell vpower has bioethanol in it. Next time I will look for E5 or E10 markings but have not seen them displayed somewhere...
Nice article. The general consensus from the firemen was hoses without the proper SAE certification used in older cars ultimately deteriorating due to ethanol. There wasn't a deep search for the reason...
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