Biofuel
- Thread starter Hairyarse
- Start date
Have a look at this - http://www.porscheclubgbforum.com/tm.asp?m=633813&mpage=1&key=ethanol򚯕
Looks like none of our cars are ok with E10
Looks like none of our cars are ok with E10
Copy of previous on Fuel.
From Region 24
Ethanol Update
Hereunder is a full report following Derek Wheels TOM (Tip of Month) warning on the perils of Ethanol.
This is the latest announcement from Porsche on the subject. Porsche are basically saying no E10 in any Porsche before the 996 and Boxster. The recommendation is to put E5 Super in instead.
E10 is a fuel which contains a higher proportion of ethanol than previous petrol formulations. The "E" stands for ethanol. The number "10" indicates that the fuel contains up to 10% ethanol. Previously the proportion of ethanol in petrol was up to 5%.
E10 fuels are suitable for refueling and thus for running all Porsche vehicles as of year of construction 1996. Specifically, the Boxster (model year 1997) and Carrera (model year 1998) models onwards.
These new fuels, which can include up to 10% ethanol in the future in accordance with new statutory regulations, can be used in all new Porsche vehicles without any problems.
The fuel types Regular E10 (91 RON) and Unleaded E10 (95 RON) are not suitable for use in the following Porsche vehicle types:
Type Year of construction
356 1950-65
911 1965-89
912 1965-69; 1976
964 1989-94
993 1994-98
959 1988-89
914 1970-77
924 1976-88
944 1981-91
968 1991-95
928 1977-95
These Porsche vehicles may not be run on E10 fuel. As an alternative, Super unleaded (98 RON) can be used. With a maximum bioethanol content of 5% (E5 fuel), Super unleaded is compatible with these vehicles.
Please contact your nearest Porsche Centre for more detailed information.
From Region 24
Ethanol Update
Hereunder is a full report following Derek Wheels TOM (Tip of Month) warning on the perils of Ethanol.
This is the latest announcement from Porsche on the subject. Porsche are basically saying no E10 in any Porsche before the 996 and Boxster. The recommendation is to put E5 Super in instead.
E10 is a fuel which contains a higher proportion of ethanol than previous petrol formulations. The "E" stands for ethanol. The number "10" indicates that the fuel contains up to 10% ethanol. Previously the proportion of ethanol in petrol was up to 5%.
E10 fuels are suitable for refueling and thus for running all Porsche vehicles as of year of construction 1996. Specifically, the Boxster (model year 1997) and Carrera (model year 1998) models onwards.
These new fuels, which can include up to 10% ethanol in the future in accordance with new statutory regulations, can be used in all new Porsche vehicles without any problems.
The fuel types Regular E10 (91 RON) and Unleaded E10 (95 RON) are not suitable for use in the following Porsche vehicle types:
Type Year of construction
356 1950-65
911 1965-89
912 1965-69; 1976
964 1989-94
993 1994-98
959 1988-89
914 1970-77
924 1976-88
944 1981-91
968 1991-95
928 1977-95
These Porsche vehicles may not be run on E10 fuel. As an alternative, Super unleaded (98 RON) can be used. With a maximum bioethanol content of 5% (E5 fuel), Super unleaded is compatible with these vehicles.
Please contact your nearest Porsche Centre for more detailed information.
JamesO
New member
In the other countries people have been using E85 for high output 944 turbos, I believe allowing them to use higher compression ratios or higher boost levels. So it can't all be doom and gloom.
Pure speculation but I'm guessing as Ethanol is supposed to be more corrosive it will kill 20 plus year old fuel pumps, rubber pipes and injectors that are living on borrowed time anyway.
Pure speculation but I'm guessing as Ethanol is supposed to be more corrosive it will kill 20 plus year old fuel pumps, rubber pipes and injectors that are living on borrowed time anyway.
It has already had consequences for some of the older cars pipes - rubber in particular - so I am concerned about injector seals and such like.
Ethanol is second only to water as a chemists solvent of choice!
Not an immediate problem, but one to be aware of.
Ethanol is second only to water as a chemists solvent of choice!
Not an immediate problem, but one to be aware of.
TTM
Well-known member
In France we have had E10 since April 2009 and though I have personally avoided it I know of other 944 owners who have used it in their cars without noticeable issue to date.
I have tried E85 in the past in the turbo (of course I had increased fuel delivery accordingly to account for the different lambda factor) but always used Redline's additive for alcohol fuel to improve lubrication.
I have tried E85 in the past in the turbo (of course I had increased fuel delivery accordingly to account for the different lambda factor) but always used Redline's additive for alcohol fuel to improve lubrication.
Thats a settling comment thanks Tom
At least a tankful by accident shouldn't cause too much drama
At least a tankful by accident shouldn't cause too much drama
Jonny944CS
New member
On the plus side:
Latest from the 'Federation of British Historic vehicle Clubs' website:
CONCLUSIONS
One area where there seems to have been a softening of attitude is in the life of E5; at the Stakeholder meetings the position was quite firm, E5 only until 2013 and then it would be phased out to be replaced by E10. The statement that E5 is likely to be around until at least 2015, backed up by the suggestion of provision of low ethanol (whatever that is) fuel for historic vehicles is a positive development and one in which we feel the FBHVC can claim to have made an impact.
On the negative:
I can think of quite a few materials from the 944 fuel system that reside in the 'not reccomended' list.
Latest from the 'Federation of British Historic vehicle Clubs' website:
CONCLUSIONS
One area where there seems to have been a softening of attitude is in the life of E5; at the Stakeholder meetings the position was quite firm, E5 only until 2013 and then it would be phased out to be replaced by E10. The statement that E5 is likely to be around until at least 2015, backed up by the suggestion of provision of low ethanol (whatever that is) fuel for historic vehicles is a positive development and one in which we feel the FBHVC can claim to have made an impact.
On the negative:
I can think of quite a few materials from the 944 fuel system that reside in the 'not reccomended' list.
Ethanl has long been an issue in the US and plenty of sites to read more if you wish.[8|]
Also in the US they have an additive you can purchase to add to your juice (should be gas) to combat the effects of Ethanol. Maybe some bright spark will see a market and start selling the same in the UK[
]
Jonny944CS
New member
Good point. Step Forward Tref!
(LPG is about 120-octane. It can be run in stupidly high CR engines without detonation - indeed, it works best in high CR engines, and running it in an 11:1 engine suitable for petrol means it is not working optimally. By my understanding, it would be possible to build an LPG-powered engine with a very impressive power output if you wanted, if you were happy to only ever use it on LPG.)
Oli.
(LPG is about 120-octane. It can be run in stupidly high CR engines without detonation - indeed, it works best in high CR engines, and running it in an 11:1 engine suitable for petrol means it is not working optimally. By my understanding, it would be possible to build an LPG-powered engine with a very impressive power output if you wanted, if you were happy to only ever use it on LPG.)
Oli.
CarreraRSR
New member
ORIGINAL: Jonny944CS
On the plus side:
Latest from the 'Federation of British Historic vehicle Clubs' website:
CONCLUSIONS
One area where there seems to have been a softening of attitude is in the life of E5; at the Stakeholder meetings the position was quite firm, E5 only until 2013 and then it would be phased out to be replaced by E10. The statement that E5 is likely to be around until at least 2015, backed up by the suggestion of provision of low ethanol (whatever that is) fuel for historic vehicles is a positive development and one in which we feel the FBHVC can claim to have made an impact.
On the negative:
I can think of quite a few materials from the 944 fuel system that reside in the 'not reccomended' list.
So based on the above, what specifically should we be looking to replace/future proof in our fuel systems? I'll be doing an engine rebuild in the New Year. Any of this affect pipes, pumps, injectors, injector seals, gaskets, washers etc.?
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