E10 Fuel Compatibility for Speed Six

E10 Fuel Compatibility for Speed Six

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Discussion

anonymous-user

Original Poster:

53 months

Saturday 26th June 2021
quotequote all
Will the speed six run on E10? There’s no TVR listing on the Govt website however looking at other makes it seems that some other performance-type cars are ok in it.

nawarne

3,088 posts

259 months

Saturday 26th June 2021
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V6 Pushfit said:
Will the speed six run on E10? There’s no TVR listing on the Govt website however looking at other makes it seems that some other performance-type cars are ok in it.
I've used the 102 Octane on German motorway services....which I think is/was a 10% alcohol based fuel.
The Tuscan ran fine - maybe a few more pops on the overrun?

Nick

PuffsBack

2,428 posts

224 months

Saturday 26th June 2021
quotequote all
E10 should be fine if you are running the car regularly. What you don't want to do is fill it to the brim with E10 (or E5 really) before storing it away for the winter. Ethanol is gygroscopic so it absorbs water from the atmosphere. Over time, water and ethanol form a mix denser than petrol, and in a process known technically as “phase separation”, sinks to the bottom of the tank and causes issues

frontfloater

348 posts

141 months

Saturday 26th June 2021
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The availability of ethanol-free high grade fuel was discussed here :

https://www.pistonheads.com/gassing/topic.asp?h=0&...

Esso already sells ethanol-free 99 octane at many of their stations, and is aiming to have it available at all of their outlets by early 2022. Of course, it will be more expensive than the standard stuff, but a price worth paying to avoid the pitfalls.

anonymous-user

Original Poster:

53 months

Saturday 26th June 2021
quotequote all
Thanks for the replies, good news then.

All sounds like a retrograde step though - uncertain and minimal climate benefits, short storage duration, more mechanical degradation - and more confusion.

leef44

4,359 posts

152 months

Saturday 26th June 2021
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Just stick with super-unleaded and not worry about it. This is still E5 or ethanol-free for ESSO.

Stunned Monkey

351 posts

208 months

Monday 28th June 2021
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It's mainly the flexible hoses you need to worry about. Ethanol causes issues of swelling and softening of older hose types. Think in particular of the fuel return lines and the hose from tank to pump. Most high pressure hoses are PTFE lined which is unaffected.

TwinKam

2,936 posts

94 months

Monday 28th June 2021
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Was reading over the weekend of problems arising now with PHEVs that are being used only on electric (typically under 30 miles/day) and consequently this ste e5 fuel 'going off' in the tank as a result of the lack of use.
Same applies to any underused ICE though, not just cars but esp motorbikes over the winter, lawnmowers and other garden machinery.

QBee

20,903 posts

143 months

Tuesday 29th June 2021
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The Esso tip is a good one. A few pence on a litre, on a car in which I do less than 5,000 miles a year, is far less important than not buggering up (technical term) God knows what in the engine/fuel systems.

I will pedal down to my local Esso later today and report back on prices compared to the Shell opposite.

anonymous-user

Original Poster:

53 months

Tuesday 29th June 2021
quotequote all
QBee said:
The Esso tip is a good one. A few pence on a litre, on a car in which I do less than 5,000 miles a year, is far less important than not buggering up (technical term) God knows what in the engine/fuel systems.

I will pedal down to my local Esso later today and report back on prices compared to the Shell opposite.
I paid £1.52 a litre last week for Diesel for the ‘works bus’.

QBee

20,903 posts

143 months

Tuesday 29th June 2021
quotequote all
Went to my local Esso - 3/4 of the pumps out of action while they upgrade the pumps, and no E0 at the one remaining pump.
180 miles to cover tomorrow, so i will search further afield.

s6boy

1,613 posts

224 months

Tuesday 29th June 2021
quotequote all
It's not marked as E0 but E5.

astonman said:
This Fuel has No Ethanol content.( Even though it has to say E5 on the pump),and its pushing over 99 octane.

QBee

20,903 posts

143 months

Tuesday 29th June 2021
quotequote all
Ah right. I will check again. It will be expensive anyway because it’s on the A46, Lincoln to Leicester dual carriageway. Not motorway prices, but not supermarket either.

astonman

789 posts

209 months

Friday 2nd July 2021
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E10 has less energy per unit volume, therefore I'd expect the Speed Six to run weak.Hence more pops and bangs on the overun as someone mentioned.
Burned pistons,blow ups,etc all quite possible on E10 ,weak mixture equals too much heat , especially under high load conditions.
Modern cars have sophisticated engine management which will add more fuel volume, if running E10.MPG will go down and fuel consumption increase on E10, for modern cars.Did Boris tell everyone who uses E10 in a compatible vehicle,that they will need to buy more fuel for a given distance travelled,relative to E5??????
Use Esso Supreme 99+ unleaded, ethanol free in the southeast and midlands.Its marked as E5, because it can legally contain up to 5 % ethanol, but doesn't have any,if supplied by an Esso owned terminal.

Edited by astonman on Friday 2nd July 00:21


Edited by astonman on Friday 2nd July 00:26

Granturadriver

574 posts

260 months

Friday 2nd July 2021
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nawarne said:
I've used the 102 Octane on German motorway services....which I think is/was a 10% alcohol based fuel.
No it is not. Here in Germany 98 Octane fuel is not available as E10 fuel but limited to 5% (E5). Fuel companies state that 100/102 Octane fuel is without or a with very limited portion of Ethanol (eg Shell: 0.7%).

astonman

789 posts

209 months

Friday 2nd July 2021
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Avoid E10 ,its really Not good .

Augustus Windsock

3,340 posts

154 months

Sunday 9th January 2022
quotequote all
A bit late to the party with this, so I apologise in advance.
I was watching one of Harry Metcalfes ‘Harry’s Garage’ on YouTube and I feel sure he made mention of some fuel you can buy for when you are laying up a vehicle over winter..
That was the up side.
The downside was that iirc it cost £3/litre, but prevents all the issues that normal fuel causes over periods of inactivity.
Hope this is of use...

anonymous-user

Original Poster:

53 months

Sunday 9th January 2022
quotequote all
Augustus Windsock said:
A bit late to the party with this, so I apologise in advance.
I was watching one of Harry Metcalfes ‘Harry’s Garage’ on YouTube and I feel sure he made mention of some fuel you can buy for when you are laying up a vehicle over winter..
That was the up side.
The downside was that iirc it cost £3/litre, but prevents all the issues that normal fuel causes over periods of inactivity.
Hope this is of use...
That would be a stunning post if you also named the type of fuel.

astonman

789 posts

209 months

Sunday 9th January 2022
quotequote all
99 Ron unleaded ,ethanol free " storage", fuel is available from Anglo-American oil Company info@aaoli.co.uk
However,it is difficult to see how this is any different from Esso Supreme 99 plus unleaded ,which is ethanol free ( though marked E5 for legal reasons), in the Southeast and Midlands of England.
Apparently a 5 star leaded version will be available from aaoil in due course for older carburettor vehicles.
On a separate point,having driven our Saxo vtr over a thousand miles of mainly motorway this Christmas,we have recorded 53 mpg on Tesco 99 superunleaded ( which is up to 5 % ethanol in the Northwest,and Scotland, where we filled up) we only ever got 43/44 mpg on the old E5 ordinary unleaded!
E10 would no doubt give less mpg than the old 95 RON?
So,using Tesco 99 superunleaded is actually cheaper than ordinary unleaded for motorway use !

anonymous-user

Original Poster:

53 months

Sunday 9th January 2022
quotequote all
astonman said:
99 Ron unleaded ,ethanol free " storage", fuel is available from Anglo-American oil Company info@aaoli.co.uk
However,it is difficult to see how this is any different from Esso Supreme 99 plus unleaded ,which is ethanol free ( though marked E5 for legal reasons), in the Southeast and Midlands of England.
Apparently a 5 star leaded version will be available from aaoil in due course for older carburettor vehicles.
On a separate point,having driven our Saxo vtr over a thousand miles of mainly motorway this Christmas,we have recorded 53 mpg on Tesco 99 superunleaded ( which is up to 5 % ethanol in the Northwest,and Scotland, where we filled up) we only ever got 43/44 mpg on the old E5 ordinary unleaded!
E10 would no doubt give less mpg than the old 95 RON?
So,using Tesco 99 superunleaded is actually cheaper than ordinary unleaded for motorway uses !
That’s brilliant thanks, I’ll look into it I’ve changed 4 sets of fuel hoses for Gates Barricade now, just want avoid and regular draining down.