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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 12:32 am 
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Joined: Thu Mar 31, 2016 10:20 pm
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Location: Edinburgh
Model: 924 Lux
Super Unleaded grades (98 RON or thereabouts) are supposed to be staying at E5.


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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 8:02 am 
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https://porsche924.co.uk/forum/viewtopi ... &hilit=E10

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1981 924 Carrera GT/S rep race car - Signal Yellow. Too much to do, to little time and money!
1979 924 Turbo Series 1 - Alpine White & Guards Red. 11yrs owned. 41yrs young so now Tax & MoT exempt
2021 Skoda Superb Sportline Plus iV Hybrid Estate - Pearl Black. Love it!!
2015 Nissan Leaf Tekna - White. Continues to 'build trees'


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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 10:24 am 
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Joined: Mon Sep 16, 2013 1:50 pm
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Location: Warlingham
Model: 924 red 1981
I’d guess cast iron not pig iron? I think the only thing that gets made from pig iron is cast iron.

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924 Tech Specs https://porsche924.co.uk/forum/viewtopic.php?f=10&t=30151
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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 12:28 pm 
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Joined: Wed Jan 02, 2019 9:39 pm
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Location: Dublin/Ireland
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richardb wrote:
I’d guess cast iron not pig iron? I think the only thing that gets made from pig iron is cast iron.


Wrought iron and mild steel are also made from pig iron.
Cast iron is just straight forward re-melting and casting of pig iron.

Wrought iron and mild steel are purified forms of pig iron (smelting, alloying, hammering, etc.)

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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 6:13 pm 
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Joined: Sun Dec 23, 2007 2:24 pm
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Location: bedford
Model: 1983 n/a
Any old iron

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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 6:18 pm 
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This thread has become rather Ironic

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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 8:00 pm 
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Location: Sweden
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Not sure it will be a very big issue, E5 has been around for ever, and people have been running kjet and other old cars on e85 for along time around here. If something eventually gives up it would probably be due for a change anyway :)


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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 8:24 pm 
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Earl Is The Name wrote:
I bet it will not be £1.20 a litre.


Depends if the government decides to tax it like current fuels, which is circa 80% fuel duty, taxes and VAT.

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Steve - Joined: Sat Jan 30, 2010 10:13 pm......think I have lost far too much time in this forum.........
1981 924 Carrera GT/S rep race car - Signal Yellow. Too much to do, to little time and money!
1979 924 Turbo Series 1 - Alpine White & Guards Red. 11yrs owned. 41yrs young so now Tax & MoT exempt
2021 Skoda Superb Sportline Plus iV Hybrid Estate - Pearl Black. Love it!!
2015 Nissan Leaf Tekna - White. Continues to 'build trees'


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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Fri Feb 26, 2021 8:26 pm 
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Earl Is The Name wrote:
Carrera RSR wrote:
https://porsche924.co.uk/forum/viewtopic.php?f=10&t=34354&hilit=E10


Yes but these addiitives are for Iron heads and no mention of aluminium heads.
Are additives any good ?
Is E5 bad for a 924S ?
Can you just get some new fuel lines / pump etc in silicone and all will be good for E10 ?
Can you just get Methanol as a fuel for aluminium engines ?


The only issue in our fuel system are a few rubber seals and hose. If that perishes it was probably due to be replaced anyway. Everything else is metal. No issues with metal fuel system parts.

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Steve - Joined: Sat Jan 30, 2010 10:13 pm......think I have lost far too much time in this forum.........
1981 924 Carrera GT/S rep race car - Signal Yellow. Too much to do, to little time and money!
1979 924 Turbo Series 1 - Alpine White & Guards Red. 11yrs owned. 41yrs young so now Tax & MoT exempt
2021 Skoda Superb Sportline Plus iV Hybrid Estate - Pearl Black. Love it!!
2015 Nissan Leaf Tekna - White. Continues to 'build trees'


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 Post subject: Re: E-Fuel Ethanol E5 and E10
PostPosted: Sat Feb 27, 2021 3:54 am 
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Joined: Wed Sep 08, 2010 8:44 pm
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Location: Birkenhead (UK)
Model: 924 na
There are a lot of mixed reports but generally looking at more recent reports from critical industries that store and/or transport ethanol based fuels ......

Ethanol with a low water content attacks aluminium and many of its alloys.

Ethanol readily absorbs water which increases risk of steel corrosion.

Ethanol readily absorbs oxygen which causes steel cracking.

Rubber is badly affected by ethanol especially in vapour form.

Nylon should be safe with ethanol BUT there is more risk of steel shrapnel entering pumps from steel components.

Petroleum gumming is generally reduced with ethanol fuels, whilst gumming can be a bad thing it also acts as a barrier protection layer in steel tanks and lines.

There are mixed reports for brass and copper, this may be due do whether the metals are continually submerged in ethanol or are also intermittently exposed to air. Much the same goes for solder.

Stainless steel is very resistant to ethanol despite some early scare stories.

Additional corrosion protection chemicals are added to ethanol fuels but this doesn't appear to be at all standardised nor is it stated what the corrosion targets.

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1983 Silver(ish)/rust n/a manual - Project Candy, SCRAPPED
1982 Guards Red n/a manual - Project 66, SOLD.
1982 Garnet Red n/a manual - Project XLE (513 licensed, 1461 sorn'd)
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