E10 fuel

Technical Forum for the Porsche Macan
Col Lamb
Posts: 7311
Joined: Fri Oct 30, 2015 8:38 pm
Location: Lancashire

Post by Col Lamb » Thu Sep 02, 2021 7:31 am

With the introduction of this new formulation of fuel into the UK I looked on Porsche.com and found this.

https://www.porsche.com/uk/aboutporsche ... 23-classic

The designation of E10 refers to the percentage Ethanol content of the fuel

Classic pre 1996 would appear to be not compatible.
Col
Macan Turbo
Air, 20” wheels, ACC, Pano, SurCam, 14w, LEDs, PS+, Int Light Pack, Heated seats and Steering, spare wheel, SC, Privacy glass, PDK gear, SD mirrors, Met Black, rear airbags

MikeM
Posts: 1488
Joined: Tue Nov 17, 2015 11:13 pm

Post by MikeM » Thu Sep 02, 2021 7:40 am

Best to always use 98Ron in a Porsche and any classics, with the older cars it will deteriorate the fuel lines 😖
Previous Porsche’s
2008. Boxster S Sport
2012. 991 S
2016. Macan Turbo http://www.porsche-code.com/PHKPBML4
Current
2020. Macan GTS http://www.porsche-code.com/PM5815A9

User avatar
Nuclear Nick
Posts: 2803
Joined: Wed Feb 17, 2016 3:42 pm
Location: Bristol

Post by Nuclear Nick » Thu Sep 02, 2021 8:26 am

All the ‘Super’ grades will still contain 5%. The exception is Esso Synergy Supreme which contains no ethanol (except in Devon, Cornwall, North Wales, North England and Scotland due to ‘technical supply reasons’).
Nick

Macan Turbo Sept ‘16

991.2 C2 GTS March ‘18

BMW K1300S, BMW R1250 GSA

User avatar
Wing Commander
Posts: 15251
Joined: Tue Oct 06, 2015 5:43 pm
Location: Swindon

Post by Wing Commander » Thu Sep 02, 2021 8:28 am

🤓

ED66E775-3F48-4028-BFAA-8640AE2DCF25.jpeg

Simon

Sold: 2016 Rhodium Silver Macan 2.0
Sold: 2013 Platinum Silver 911 (991.1) C2
Sold: 2017 Carmine Red Panamera 4
Mine: 991.2 Carrera T Racing Yellow http://www.porsche-code.com/PJCIIPK4

GTB
Posts: 36
Joined: Thu Aug 26, 2021 3:49 pm
Location: Scotland

Post by GTB » Thu Sep 02, 2021 10:13 am

Morning All,
Given that petrol/filling stations is the engineering discipline Im involved in, please remember that either E5 or E10 the legal wording and definition of the Ethanol is "may contain up to...." so even if the 95 Ron standard unleaded petrol nozzle is marked as required from 1st September to be E10 it may actually only have 4.8% or perhaps even 0.1% Ethanol and it still complies. Depending on your geographical area of the UK some fuel distribution centres have no facilities for introducing Ethanol into the fuel so even the existing 95 Ron E5 nozzles were still just dispensing 100% unleaded petrol.

DOT decided given the volume of older cars that cant deal with the higher Ethanol content of up to 10% then the easy soluition was to keep the 97Ron super unleaded fuel at E5 up to 5% the negative part is of course those owners now need to fork out at least another 15p per Litre.

The main and likley more critical thing with the higher Ethanol E10 content fuel is Ethanol is Hydroscopic to attracts and absorbs water even that water content in a humid atmosphere so partially full fuel contianers and tanks will have issue if not used regularly, also Ethanol is a detergent and will start to soften many rubber/nitrile type o rings/seals,fuel lines etc etc so aprt from your Porsche vehicles you also need to think about any petrol lawnmowers and petrol machinery you may have where people leave fuel in them over the winer as next spring the fuel lines may be found softened or indeed seals perished. So draing down these tanks and lines will likley be the best way to go if leaving for what the industry indicates is no use for greater than thirty days.

Many of the fuel retailers have before the introduction of E10 had to change delivery hoses and seals and fuel lines within the dispensers because they were not compatible with the new E10 fuel if the Ethanol content is greater than 5%.

User avatar
Nuclear Nick
Posts: 2803
Joined: Wed Feb 17, 2016 3:42 pm
Location: Bristol

Post by Nuclear Nick » Thu Sep 02, 2021 11:29 am

^^^^ Great post GTB, thank you. I hope you’ll stick around as I’m sure you’ll be able to correct us when we spout nonsense about fuel issues!
Nick

Macan Turbo Sept ‘16

991.2 C2 GTS March ‘18

BMW K1300S, BMW R1250 GSA

User avatar
Neil1911
Posts: 420
Joined: Sun Apr 14, 2019 12:00 pm
Location: Sheffield, England

Post by Neil1911 » Thu Sep 02, 2021 2:16 pm

I've just made the switch to Esso, partly for this reason. I did my first 6k miles on supermarket Super, the next 13k on VPower Super. After its 20k service I filled up with my first 60ltr of Esso. Not sure if it's a clean air filter (oil wasn't changed), different petrol or the tenderness of my wallet but if feels noticeably smoother and more responsive!

BTW the increase in economy with V Power was +.13 mpg over those miles, although the first 6k probably had a bigger % of longer runs. If I see anything noteworthy with Esso I'll create a new thread.
2020 S: another Volcano Grey, 18" Macan Wheels +Spare, 14 way seats, ACC, Air Susp, PASM, Roof rails, Heated Screen & Front Seats, 75l tank, Comfort Lighting, PS+, ParkAssist with rev camera and smokers pack!

GTB
Posts: 36
Joined: Thu Aug 26, 2021 3:49 pm
Location: Scotland

Post by GTB » Thu Sep 02, 2021 3:01 pm

Nuclear Nick wrote:
Thu Sep 02, 2021 11:29 am
^^^^ Great post GTB, thank you. I hope you’ll stick around as I’m sure you’ll be able to correct us when we spout nonsense about fuel issues!
Hi Nuclear Nick,

Yes I will be hanging around for sure having just joined the Forum, and yesterday paying my £3k deposit to my OPC for a new Gen3 GTS https://www.porsche.com/microsite/porsc ... =/PNTUV2A3

Hopefully my GTS will have been built and arrived before our UK fuel moves on again from E10 :D :D
Yes having worked on electrical installations and systems on filling stations and sit on the UK technical committee for their design and construction I do have a reasonable knowledge of the UK's filling stations and fuel infrasructure.
Will be happy to help if I can.

GTB (Gareth)

User avatar
Wing Commander
Posts: 15251
Joined: Tue Oct 06, 2015 5:43 pm
Location: Swindon

Post by Wing Commander » Thu Sep 02, 2021 3:19 pm

Welcome, Gareth! :)

That’s a classy looking & well specced Gentian GTS!

Roll on collection day...!
Simon

Sold: 2016 Rhodium Silver Macan 2.0
Sold: 2013 Platinum Silver 911 (991.1) C2
Sold: 2017 Carmine Red Panamera 4
Mine: 991.2 Carrera T Racing Yellow http://www.porsche-code.com/PJCIIPK4

User avatar
SAC1
Posts: 2224
Joined: Wed May 24, 2017 8:24 pm
Location: near BATH

Post by SAC1 » Thu Sep 02, 2021 4:59 pm

GTB wrote:
Thu Sep 02, 2021 3:01 pm
Nuclear Nick wrote:
Thu Sep 02, 2021 11:29 am
^^^^ Great post GTB, thank you. I hope you’ll stick around as I’m sure you’ll be able to correct us when we spout nonsense about fuel issues!
Hi Nuclear Nick,

Yes I will be hanging around for sure having just joined the Forum, and yesterday paying my £3k deposit to my OPC for a new Gen3 GTS https://www.porsche.com/microsite/porsc ... =/PNTUV2A3

Hopefully my GTS will have been built and arrived before our UK fuel moves on again from E10 :D :D
Yes having worked on electrical installations and systems on filling stations and sit on the UK technical committee for their design and construction I do have a reasonable knowledge of the UK's filling stations and fuel infrasructure.
Will be happy to help if I can.

GTB (Gareth)

A warm welcome Gareth.

So the 64m. dollar question is....What brand of premium petrol will you run in your GTS (if you had it today)?
Steve

2020 GTS in Sapphire Blue
(sold) 2017 SD in Rhodium Silver

Post Reply

  • You may also be interested in...
    Replies
    Views
    Last post