My car don't like it much.
I found a video of a similar car to my own testing mpg with E10 & E5 petrol
https://www.youtube.com/watch?v=TYQrwbQtQig anyone else found a difference?
Post last edited on 30/08/2022 16:43:05
------------- Knowledge is recognising that a tomato is a fruit: experience is not putting it in a fruit salad.
WhatCar recently said: “It is believed that the higher bioethanol content in E10 petrol could dislodge deposits in older engines and fuel systems, causing blockages; it could also cause some seals, gaskets, metals and plastics to corrode.“
This is a concern for older MHs & campervans. And I’ve had reports from friends of lower mpg.
Mrs L has just bought a new car so we're still getting used to what mpg it will do. So far (at 700 miles) it's just over 52 mpg on E10 petrol. Even if E5 fuel does give better mpg, will it justify the extra cost?
I would have imagined that most motorhomes and campers are diesel so the grade of petrol won't affect them.
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Quote: Originally posted by Capt Lightning on 30/8/2022
I would have imagined that most motorhomes and campers are diesel so the grade of petrol won't affect them.
Some old Talbot MHs are petrol. Not many around though.
My 2017 Citroen was built for E10 use, E10 has been in use on the continent since 2009, UK are real latecomers to adopt!
Having run mine on both E5 and E10 after the recent UK changeover, cant say I've notice the slightest difference, certainly no loss of MPG!
IF there is a problem, it usually revolves around the ethanol content affecting the 'rubber' components of the fuel systems, and/or infrequently used cars as the ethanol absorbs water from the atmosphere and that higher water content in 'stale' fuel can interact with metal components in the fuel system causing corrosion.
Quote: Originally posted by Capt Lightning on 30/8/2022
I would have imagined that most motorhomes and campers are diesel so the grade of petrol won't affect them.
Some old Talbot MHs are petrol. Not many around though.
Aghhhh. Don't mention Talbots. I had one many years ago. Thirsty, under- powered and a horrible gear change. However, it never let me down.
------------- Two drifters off to see the world.
I'm tired of reality, so I'm off to look for a good fantasy.
The K series engine in my Rover is listed as not compatible, although the Range Rover Freelander with the same motor is ??
Anyway, I had to use E10 as there was no E5 anywhere at the time. I then discovered that at speeds up to 45 mph there was no difference, however, getting above that required a telegram which for a 1.8 twin cam injection is not good.
Switching back to super unleaded when it finally arrived, and once the tubes were clear, it was back to illegal substances (oxygen at over 70mph) with no problem.
As for diesel, have you ever sat behind a bus running eco diesel? It smells like a chip shop when taking off and leaves a trail similar to an Ariel Leader (you have to be of a certain age to remember those bikes).
------------- Knowledge is recognising that a tomato is a fruit: experience is not putting it in a fruit salad.
There is no scientific reason why you should notice a marked reduction in performance! Ethanol has about two thirds the calorific value of petrol, BUT the ethanol content has only risen 5% from E5 to E10, so the reduction in 'energy' in the overall fuel is infinitesimally small (effectively a 'loss' of one third of 5% of available energy!!!) - EVERY other factor from air temp to tyre pressure will have a FAR MORE marked effect on performance and fuel economy. All other factors being equal, simply the change in fuel could not possibly account for any noticeable difference.
IF you suffered the deterioration in performance through debris being created in the fuel system by the detrimental effects of extra Ethanol in E10, then you would NOT see a return in performance when subsequently running Super Unleaded (E5), as it would be debris causing the change (usually blocking filters and impeding fuel flow), not the fuel!
Even the acknowledged technical reduction in fuel economy by 1% amounts to something that is all but unnoticeable, if you did 50mpg on E5, you'd do 49.5MPG on E10 if it were possible to do journey without ANY change to other factors! - basically only in laboratory conditions. Certainly on the like for like journeys I do I get anything up to 12-15% variation on fuel economy depending on a host of other factors, the 1% economy reduction is well lost in a host of other influences and totally undetectable.
The age and 'incompatibility' of your car is not going to materialise in any noticeable loss of performance, the 'problem' with E10 lies solely with chemical compatibility with Ethanol of components used in the fuel system. I'm involved with classic cars, and it's a topic debated to death in those circles, the concerns are leaks from deteriorating seals/flexible pipes, debris/corrosion in the fuel system, excessive hygroscopic water build up in stale fuel on rarely used cars!
Monty...It amuses me when people state something is impossible, yet they are not in the car to witness it.
I will add my neighbour has a Rover 45, the 1.4 as opposed to my 1.8 and he too has experienced the same loss of power when using E10 (not from the same garage I will add nor supplied from the same tanker) and normal service resumed when E5 was reintroduced.
There have been many times when things happen with no scientific proof...a bumblebee for example should be incapable of flight.
------------- Knowledge is recognising that a tomato is a fruit: experience is not putting it in a fruit salad.
My motorcycle is designed to run on super unleaded which is always E5. There is a noticeable difference in performance between E5 super unleaded and regular E10 unleaded fuel, especially at higher engine speeds above 10,000 rpm. Though I think that this is most likely to be due to the higher octane rating rather than the lower ethanol content.
My Land Rover has a 4.6 V8 from a 1999 P38 in it and although it was not designed to run on E10 it does so just fine without any noticeable difference in performance. When I fitted the engine I refurbished it with new seals and replaced the fuel line, pump and filters. Any new fuel system parts manufactured within the last 10 years should all be compatible with E10 fuel.
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Topic: E10 petrol
via mobile 30/8/2022 at 6:51pm
