E10 petrol - the pitfalls.
As you may have heard from the mainstream media, E10 petrol is due to hit UK forecourts in September. This will see up 10% ethanol added to regular 95 RON, instead of the present <5% content (E5). In this introductory blog, GEM shall tackle some of the most common questions that our members have posed to us so far, on which we plan to elaborate in future blogs.
Why is E10 being introduced? The aim is to reduce road transport carbon dioxide levels, especially since new diesel passenger car sales have declined. If I use E10, will my fuel consumption increase? Yes – although only slightly. Is there an alternative to E10? Yes – the super unleaded pumps will dispense higher octane petrol, containing up to 5% ethanol (E5) for the foreseeable future. Yet, we doubt that E5 Super Unleaded’s extra cost will compensate for the increased economy over E10 Unleaded. Is it only classic cars that can be harmed by E10? No. E10 petrol has a lower shelf life than normal petrol and running any engine on ‘out of date’ fuel can be harmful. Should I use E10 if I cover a low mileage? If you do not refuel regularly, consider using Super Unleaded (E5). This includes Plug In Hybrid cars that are driven frequently in electric-only modes, so the fuel tank is not replenished frequently. If my car is not compatible with E10, would a single tankful cause damage? Yes – many pre-2005 Direct Injection petrol models cannot use E10 – doing so has seen lasting, irreversible harm to the costly high-pressure fuel injection pump. How can I check if my car is compatible with E10? This webpage confirms vehicles that can use E10: https://check-vehicle-compatibility-...ervice.gov.uk/ However, note that compliant vehicles are still not protected from harm, caused by the engine using deteriorated fuel that has been in the tank for more than several weeks. https://blog.motoringassist.com/car-...l-be-affected/ I fill the tank once every 3 or 4 months, but my car is not E10 compatible, so no problem with the fuel going off. But no local garage presently sells E5 super unleaded, and have no plans to do so. It's about 15p a litre more expensive than standard E5. That means my car will have to be scrapped and replaced at a cost I could barely afford at the moment. :mad: |
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I run premium diesel in both the 4x4 and premium unleaded on the bike (both have been remapped/tuned) premium diesel is currently running at 153.9 a litre here can't remember what premium unleaded is but it's not far off. my other car's electric so no effect.
SWMBO runs premium unleaded on her car, her bike runs on E10 with no issues which is a surprise as it's a 2001 year A fuel stabiliser will help you in your situation. |
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I saw an article about this change yesterday and thankfully our car will take the new E10 fuel.
We have always kept the tank topped up but once the E5 is no longer available we will have to keep our fuel reserve a lot lower as, only doing about 5,000 a year tops, we will presumably have to guard against the fuel in our tank deteriorating. Ah well I guess this will result in our spending more time in my portable bubble. <sigh> :) I will certainly be looking into mrmistoffelees's suggestion about a fuel stabiliser so thank you Mr M. :tu: |
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I just found this...
https://www.screwfix.com/p/mountfiel...ails_container Quote:
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There are also fuel stabilisers specifically designed to work with the E5, E10 - E85
LucasOils do one, as do Wynn I believe ---------- Post added at 11:12 ---------- Previous post was at 10:51 ---------- amazon.co.uk/Lucas-Oil-10576-Ethanol-Treatment/dp/B004FW77F0 |
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My curent car (colt CZ1) is listed as being able to use this fuel and although my Metro GTi 16v isn't listed the Landrover Discovery uses the same engine (Rover's K series) and is listed as accepting the petrol.
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I have a 20year old Jeep Wrangler as a 3rd car, so looks like I'll be having to fill it up with Super Unleaded.
The wife has a Ford mustang so I think I'll be advising her to use Super Unleaded too. |
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Would love to see pictures of the GTi !!!!! very jealous !!! |
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Well according to the government site:
E10 is cleared for use in all petrol driven Ford models sold in Europe since 1992 excluding:
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https://check-vehicle-compatibility-...ufacturer/JEEP Quote:
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Here we go again, making things worse while attempting to make things better.
Who's behind this latest one? Is it petrol companies, car manufacturers, the Govt, environmental activists, Disney? |
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Probably decided "pre-CV19". Now more folk can and do work from home -> less car commutes -> less mileage -> less pollution saving BUT more problems because cars aren't getting used as much so not emptying/filling tanks -> E10 problems. But policies can't be reversed or delayed so easily so we get stuck with it.
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https://www.cableforum.uk/board/atta...7&d=1628166797 Wheels are Compomotive motorsport 14" with Falken 185 45 14 tyres. https://www.cableforum.uk/board/atta...6&d=1628166797 Rovers lovely twincam K engine: 103PS @ 6,100 RPM She's currently SORN in my garage awaiting some restoration work so won't be needing the new petrol for a while. Attachment 29177Attachment 29176 |
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Thats awesome....
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I wouldn't put anything other than Super Unleaded in the 'Tang. |
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I know nothing about this, so just to be clear, this is just petrol, nothing to do with diesel ?
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"Up to 7% bio-diesel in diesel is considered not to cause any compatibility issues with car fuel systems and there's no need to mark pumps to tell customers that the fuel may contain biofuel." https://www.theaa.com/driving-advice...nment/biofuels I once saw a guy in the Lidl car park filling up with a trolley-load of cooking oil. |
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I ran an old diesel Range Rover on about 50% veg for a while. The exhaust smelled like a roadside burger van. |
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There used to be a thing a while ago where people were collecting the old oil from fish and chip shops, filtering it and using that
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He had a machine in his garage that did the full biodiesel conversion for him. That’s not just filtering - there’s a chemical process as well. It can be fiddly to learn but if you do it, you can use it in a wider range of vehicles and often at 100% bio as well. |
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Just a bump for those that are unaware
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In other words, it's garbage and you should stay well clear. |
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It's meant to reduce CO2 output by the engines, but misses out the bit that producing the ethanol, also produces CO2.:rolleyes: Quote:
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The claim is that as Ethanol has less carbon than the petrol it is replacing, it therefore produces less CO2. CO2 is effectively "extracted" in the production of the Ethanol. It might even be the case than more CO2 is produced overall. The central problem with using Ethanol, is that it absorbs water, and that can damage engines. You can't distil 100% Ethanol. Link Quote:
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My niece has a Ford Ka, (which has a Fiat 500 engine in it),
The other week she filled up and got a warning light show up, she took it to a guy who asked had she filled up, he plugged the car in but nothing showed up. We've told her to put E5 in, then told her I put ultimate diesel in at £1.50 a litre, and cried when my last fill was £78. |
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No, I was saying that E5 is now BP Ultimate Petrol, and that I pay £1.50 a litre for mine |
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Except that he did!
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Oh no he didn't!:D |
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I love a bit of forum pedantry as much as anyone but can we move the topic along please …
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I regard E10 as an ill judged piece of pedantry on the part of the climate warriors in government. The potential damages to cars if you leave it fallow for a month ranks also with the price gouging cost of E5 Super.
It's like the latest shock horror that Asthma inhalers are a major contributor to Climate Change. I'll put that into the other thread. |
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I mentioned E10 to a mate, who frowned immediately. No storing petrol for his lawnmowers, chainsaws, and hedge trimmers, unless he pays the extra for E5 super. Another added cost to his ailing business.
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At 12p per litre, its probably cheaper just to buy E5. |
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May be fatal if swallowed and enters airways. May cause drowsiness or dizziness. Suspected of causing cancer. Suspected of damaging fertility or the unborn child. May cause long-term adverse effects in the environment ---------- Post added at 11:51 ---------- Previous post was at 10:42 ---------- A good comparison test for fuel stabilisers. It's not all good news. https://www.youtube.com/watch?v=chsGBhB5g7o ---------- Post added at 12:05 ---------- Previous post was at 11:51 ---------- K100 vs Sta-bil https://www.youtube.com/watch?v=MexPdjbg-H8 |
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Our young neighbours got caught by track and trace, then positive PCR tests, so had a 3-week rollercoaster ride at home with covid-19.
At the beginning of last week, now recovered, the husband asked to borrow my battery charger as both their cars refused to start, and the batteries went flat. 2 days later, the cars would still not start, so he recharged the batteries once more and got a mechanic to have a look. He found that the E10 fuel in both had undergone phase separation and had absorbed water, so he drained the petrol tanks, flushed the fuel systems and added new fuel. Perfect starts for both cars. The mechanic told them that this was a growing problem, especially when cars were being left unused due to illness or WFH. |
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Don't buy E10.
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Currently have E10 in tank as price was so much cheaper than E5 and I am doing more miles over Christmas. When things settle to normal low mileage likely to go back to E5 but in past I've had E10 unused for some days without issue.
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I use Premium Diesel |
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I do one fill at half empty E5 then next one E10.
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I wouldn't be able to use E10, my car needs premium petrol.
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A garage killed my 27-year-old Skoda, no parts available, so I was about to scrap it, but got an enquiry from a guy in Poland. He sent a mechanic to do a thorough inspection, then offered me £750. It was in my bank minutes later, and the car was taken away the next day. So now I have moved on to an E10-compatible 2019 Dacia Logan MCV. It's got a titchy engine, so won't really benefit from E5 Premium. The tank is HDPE, so the rust problem is moot, but the low mileage I do throws up the problem of phase separation: keep the tank close to full to reduce the amount of humid air it is exposed to, but have to lug that extra weight around (it's got a 50 litre tank); or keep the tank almost empty, causing more humid air to be in contract with it. I've been trawling the internet about the additives available in the UK, but none seem to have proper science behind them. :( |
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lmfao...:D |
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The primary route for water contamination in fuels was determined to be via condensation in fuel tanks, not by simple contact with damp air. The droplets would sink to the bottom of the tank and be absorbed by the ethanol as it broke down by phase separation, which could take weeks or months, depending on conditions.
According to CSP (https://www.cspdailynews.com/fuels/3...ase-separation) it only takes 40 gallons of water in 10,000 gallons of E10 to cause phase separation. That's 250:1, so in a 50 litre Logan fuel tank, just 20cl of water would do it. That's less than a pub measure of spirits. ---------- Post added at 20:01 ---------- Previous post was at 19:37 ---------- Quote:
When I took the car for that same tyre to be repaired elsewhere after picking up a nail, I was told that they were having difficulty getting the wheel nuts back on. They showed me stripped threads in the hub. They managed to get the wheel on secure, but suggested the hub be changed. So l took the car to the original garage for it's service and MOT in December 2022. No call from them later in the day, but they sometimes take 2 days to get it done, so I didn't call until early the next day. No-one answered the phone. Several phone calls didn't get answered throughout the day. But on the third day they answered, blaming a glitch that cut their phones off. The boss came on the phone and said that my car was a write-off. Their pneumatic hammer tools that tighten the wheel nuts had been wrongly calibrated by an outside firm, and had been tightening them far too much. He had spent 2 days trying to find replacement parts, both front and rear hubs, but they were in stock nowhere, even in Czechia where they were made. A few other customers had their hub threads stripped also, and one went to Trading Standards. The garage owner was told to recall all vehicles they had removed and replaced wheels on. That was in the summer of 2022, but for some reason my car had not been recalled. He reported my car as "damaged beyond repair" to Trading Standards and their own insurance company, including photos and bills for the work that had been done, in 2021 and 2022. It's with the insurance companies now, so I expect a fat cheque at some point. |
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I know it's no help to you now but I go to a small garage and the boss there doesn't use air guns for this very reason. He's got his old trusted wheel brace and checks the nuts with a torque wrench when he puts them back on.
I know it's in the hands of the insurance companies but I bet you could still do without the hassle. |
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You could just remove the ethanol from the petrol , i do so my lawn mower keeps running ok
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All you do is mix it with water, shake, leave, and drain away the water. However, its not really practical to keep doing it to fill a car. |
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On average, premium unleaded is 10p a litre more than regular E10 but at current prices, removing the ethanol leaves you short of 15p worth of your E10. Yes it’s only 5p but even for a lawnmower it hardly seems worth doing the chemistry. I dunno maybe it’s just me. I started putting premium in mine last season. No stress no fuss … it actually seemed to sound happier, although that’s not saying much for my knackered old machine. Then we moved house and I left it behind anyway. I have a smaller lawn and an electric mower now. |
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I would have thought a 27-year-old Skoda would be scrap material.
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One new exhaust about 10 years ago, 5 tyres (cracked not bald), a new alternator 6 years ago, and a refurb of the starter motor 2 years ago. And with 47k on the clock, it was barely run-in. ;) |
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Back on subject:
The primary route for water contamination in fuels was determined to be via condensation in fuel tanks, not by simple contact with damp air. The droplets would sink to the bottom of the tank and be absorbed by the ethanol as it broke down by phase separation, which could take weeks or months, depending on conditions. According to CSP (https://www.cspdailynews.com/fuels/3...ase-separation) it only takes 40 gallons of water in 10,000 gallons of E10 to cause phase separation. That's 250:1, so in a 50 litre Logan fuel tank, just 20cl of water would do it. That's less than a pub measure of spirits! |
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E10? Rubbish. Meths is a far superior drink.
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When it comes to petrol garden equipment, E5 is the prefered fuel.
I belong to a charity which is charged with keeping our local graveyard tidy, £1000 mower doesn't like E10 coughs and splutters whilst E5 ir runs sweet! We found that if using E10 the ethanol mix attacks the fuel lines and causes sediment to collect. We now over the last 4yrs empty all the fuel from our assorted Stahl strimmers when season closes end November. |
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(20cl is about a third of a pint) |
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Plus, if you use a petrol mower chances are you have other petrol tools, and these invariably use 2-stroke engines. So unless you want to keep two cans sitting around you might as well put premium in everything. |
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My mower is electric [cordless] - has been for the last few years.
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On radio 4 today ,sliced bread was about petrol, talking about E5 and E 10 , just in case anyone is really interested !
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