E10 Fuel Compatibility for Speed Six

E10 Fuel Compatibility for Speed Six

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Discussion

dvs_dave

8,607 posts

225 months

Saturday 22nd January 2022
quotequote all
A lot of overthinking going on here. Just put a dose of ethanol fuel conditioner in the tank for layup. It’s what I do with mine for the winter with E5 in it….job done.

A few quid from your local motor factors or Amazon, etc.

One example of the many offerings out there.
https://lucasoil.com/products/fuel-treatments/safe...


leef44

4,381 posts

153 months

Saturday 22nd January 2022
quotequote all
dvs_dave said:
A lot of overthinking going on here. Just put a dose of ethanol fuel conditioner in the tank for layup. It’s what I do with mine for the winter with E5 in it….job done.

A few quid from your local motor factors or Amazon, etc.

One example of the many offerings out there.
https://lucasoil.com/products/fuel-treatments/safe...

Interesting, thank for thatthumbup

Is it ok to put a dose once the car is laid up or are you meant to add it when filling up?

dvs_dave

8,607 posts

225 months

Saturday 22nd January 2022
quotequote all
Putting it in during a fill up will mix it quicker, but it’ll still do it’s job if the car is already laid up.

leef44

4,381 posts

153 months

Saturday 22nd January 2022
quotequote all
dvs_dave said:
Putting it in during a fill up will mix it quicker, but it’ll still do it’s job if the car is already laid up.
Thanks

astonman

791 posts

210 months

Wednesday 26th January 2022
quotequote all
It's easy to stop phase separation of ethanol/gasoline petrol by adding all sorts of stuff,eg acetone.
But please don't pretend that these "snake oils ", won't change octane ,any other host of possible detrimental effects, eg calorific value.

If you are going to put something into your fuel that's so wonderful,why isn't it in there to start with?
This stuff is just like adding " redex", in the sixties. Seemed like a good idea at the time, apparently!
Just use ethanol free fuel,simples.

leef44

4,381 posts

153 months

Wednesday 26th January 2022
quotequote all
leef44 said:
dvs_dave said:
Putting it in during a fill up will mix it quicker, but it’ll still do it’s job if the car is already laid up.
Thanks
Actually the spec says it is for E10 fuel conditioning so does that mean it has no benefit if you've already got E5 fuel?

astonman

791 posts

210 months

Wednesday 26th January 2022
quotequote all
Ethanol in petrol absorbs water from the atmosphere.
The higher amount of ethanol the more water can/ will be absorbed.
E5 will absorb less ultimate volume of water than E10, and very likely absorb it slower.
The reason why this can be a problem,is that once enough water had been absorbed,the ethanol ( now in a solution with water) separates into a separate layer from the gasoline element ( it's called phase separation).
The watery layer accumulates on the lower layer and the oily gasoline in the upper layer.
So,when you try to run the car , you will be running on watery ethanol,which won't work and it will corrode metals .
The " snake oil", if it actually works, will work just as well with E5 or quite likely better.
However, you'd be better off draining the fuel out over winter or using ethanol free fuel if you can get it.
Remember,the "snake oil ", only claims to stop phase separation/ corrosion?
What does it say about calorific value,octane etc?
Unlikely to be independently tested,you have to rely on the products own advertising.
If it was so great,then the fuel companies would add it to E5 or E10.
Notice the expensive anglo- American " storage petrol", is simple ethanol free fuel,No "snake oil ", element .

leef44

4,381 posts

153 months

Wednesday 26th January 2022
quotequote all
So it will be easier just to take the car for a drive now and then over winter as long as temperatures are not too low, to avoid gritted roads.

astonman

791 posts

210 months

Thursday 27th January 2022
quotequote all
It's either cold and bright ( salt down) or wet ( no salt) here.

dvs_dave

8,607 posts

225 months

Friday 28th January 2022
quotequote all
astonman said:
Ethanol in petrol absorbs water from the atmosphere.
The higher amount of ethanol the more water can/ will be absorbed.
E5 will absorb less ultimate volume of water than E10, and very likely absorb it slower.
The reason why this can be a problem,is that once enough water had been absorbed,the ethanol ( now in a solution with water) separates into a separate layer from the gasoline element ( it's called phase separation).
The watery layer accumulates on the lower layer and the oily gasoline in the upper layer.
So,when you try to run the car , you will be running on watery ethanol,which won't work and it will corrode metals .
The " snake oil", if it actually works, will work just as well with E5 or quite likely better.
However, you'd be better off draining the fuel out over winter or using ethanol free fuel if you can get it.
Remember,the "snake oil ", only claims to stop phase separation/ corrosion?
What does it say about calorific value,octane etc?
Unlikely to be independently tested,you have to rely on the products own advertising.
If it was so great,then the fuel companies would add it to E5 or E10.
Notice the expensive anglo- American " storage petrol", is simple ethanol free fuel,No "snake oil ", element .
A lot of alarmist pseudo-science nonsense right there.

But by all means keep pushing over-complex solutions to a very simple and already well solved problem. Better to have multiple options to choose from.

astonman

791 posts

210 months

Wednesday 2nd February 2022
quotequote all
It's ALL perfectly straight forward science, actually!
Only someone who knows nothing about fuel technology and organic chemistry would use the word pseudo.But you are probably a Pseud.QED.

borat52

563 posts

208 months

Tuesday 22nd February 2022
quotequote all
I doubt fuel would be BS compliant (or whatever the current standards are called) with the additive included, doesn't mean it's bad full stop though.
Fuel will lose octane as it ages anyway.

They may also not include it simply on cost grounds, it's pretty competitive price wise and despite the marketing garbage that shell would like you to believe there's next to no difference between 2 brands of the same octane E5 or same octane E10.

astonman

791 posts

210 months

Wednesday 23rd February 2022
quotequote all
Esso produce the Only E5 available at the pumps ,which is Ethanol Free( in the Southeast and Midlands of England).
I'm told that Esso supply Tesco? If they do then it's very likely E5 99Ron at Tesco in the Southeast and Midlands of England,will also be Ethanol Free.

On a different note,I have traveled one thousand miles of largely motorway recently ( four journeys,two in each direction).In a Citroen Saxo 1.6 vtr, which is apparently E10 compatible.However, not wanting to trust 19 rear old rubber pipes, pumps and seals to E10 ,I used E5 from Tesco 99ron.
What's interesting is that on the old basic E5 we've used for years,the car always did 43/44 mpg on this trip,and we've done it every year for the previous 18 years .
This year on 99 Ron E5 the car did a minimum of 54mpg.This is E5 with Ethanol in it, because we are traveling between Northwest England and Scotland and back.
So, although it cost more to fill up, the improved fuel consumption more than off set it.
I really can't explain this mpg improvement,it would make some sense if the E5 99 Ron was ethanol free, but that's very unlikely ,since the fill ups occurred in Cheadle and Edinburgh, respectively.