1 hour ago, Eric Bloodaxe said:

Been using E10 in both our cars from its introduction and still noticed no difference in performance or consumption..

• there must be a drop its just physics / maths

ethanol produces 30% less energy than petrol for same amount burnt - so with 10% now just rubbish, mpg has to change by at least >6% - but worse still they have used the opportunity to make its far worse - makes more money that way - and many are seeing 15% drop worldwide

its only to rob us and make your car die faster

• ethanol

destroys natural rubber
deforms / expands and ages plastics, causing cracks and leaks in certain older petrol tanks
eats aluminium, because it contains soluble chloride ions
is hygroscopic (absorbs water) leading to rust and corrosion - leading to holes in metal tanks and debris blocking fuel lines
grows bugs that excrete acetic acid causing pitting and erosion of fuel injectors, pumps and engine components (when used infrequently over winter)
starts to break down and age in 2 months vs equiv of 2 years for normal petrol
has a lower energy density leading to increased fuel consumption

So glad I got a diesel then. My trip home tonight. 

Sad to see the introduction of E10 in Northern Ireland from next Monday...

https://www.belfasttelegraph.co.uk/news/northern-ireland/e10-rollout-of-less-polluting-petrol-gets-underway-in-ni-41944091.html

33 minutes ago, StephenFord said:

Sad to see the introduction of E10 in Northern Ireland from next Monday...

As posted earlier, I have still not noticed any performance/mpg reduction from using this over the past year or so. I accept that in theory there must be some penalties, but either I'm too rubbish a driver to notice, or on my car at least, they are not particularly significant and are hidden by other factors e.g. traffic conditions, ambient temperature, etc.

Whatever, I'd rather be using this stuff:

https://www.autocar.co.uk/car-news/technology/can-synthetic-fuel-replace-fossil-fuel-global-scale

(This is the article I was trying to link to on the other thread. It worked today.😀)

 

I've got the 1.8 Duratec and it cuts out, is hesitant, revs up and down and pinks every time I blip the throttle with the E10.  Thought I was imagining it but I've ran 5 - 10 full tanks of E5 through it and the computer MPG has went from 39 to 43 MPG.  It doesn't cut out at junctions and the pinking has gone.  I've now ran about 3 tanks of E10 through it and back to it's old tricks of hesitation, cutting out and pinking.  Also tried the Millers Petrol Power Ecomax / Redex with the E10 and it never made a single bit of difference.  For the extra 15p per litre, looks like I can ditch the additive and just run it on E5.

On 8/29/2022 at 11:43 AM, Eric Bloodaxe said:

As posted earlier, I have still not noticed any performance/mpg reduction from using this over the past year or so.

 

there was some nerd posting reviews of all the major brands of E5 month after month on youtube link below

get a decent measuring flask and with some water you can simply measure the filth content - as its splits out into the water you put in - and thus you know what's petrol and whats design to kill the planet ethanol

Note it that takes 6100KCal to make a litre of that filth, but magically you only get 5600 KCal of energy when you burn it... thus its designed to be WORSE for the planet (and that's the point - the plan isn't to solve global climate change for you - its to get you poor enough you can't fight back - then they'll resolve how many stay and keep their 7* living)

one I just found in last few months on E10 had shell at 6%, BP 5% and Esso 3% previously the yorkshire guy was finding a lot of super unleaded is all less than 3% ethanol and asda much to his annoyance was best value and only 1% ethanol....    but where are things where u get your death fuel

 

 

 

Not the most scientific test! I have seen quite a few reports on a similar theme though, that indicate the ethanol content in both E10 and E5 is often lower (sometimes much lower - E10 could be as low as 5.5%) than the 10% or 5% respectively which is the maximum permitted content.

Might explain why I found no discernible differences with our cars.

Whatever, I've been running the ST on E5 for the last 6 months (except for the odd fill of E10 when E5 was n/a).

Also seen a few comments that alternate fills of E10 and E5 are sufficient to do the trick in cases such as @Bar72 mentions above.