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Old 09-26-2021, 01:44 AM   #1
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E10 10% ethanol fuel change in UK, Impact?

In the UK from 1st Sept - petrol will move to the E10 variety. This contains up to 10% ethanol, up from 5% for the old E5 grade. Been reading some mixed warnings on how ethanol can have a corrosive effect on metal, plastic and rubber parts in the fuel system etc, especially where fuel is stored in the tank for some time.

I use my Argosy infrequently (just owning it and using it now and again makes me happy) and am likely to go weeks on end without starting it up.

So just checking in with everyone in the US whether they have needed to replace fuel lines or take other steps to make sure their older Chevy engines don't suffer from any of the hygroscopic issues and whether any additives exist to sole any issues.

I will try and seek out the 97 octane fuel when I can but this is not always available and in the UK at all stations and could be phased out in 5 years or more (depending on Gov policy of course).

Many thanks
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Old 09-26-2021, 04:30 AM   #2
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Quote:
Originally Posted by r1071987 View Post
In the UK from 1st Sept - petrol will move to the E10 variety. This contains up to 10% ethanol, up from 5% for the old E5 grade. Been reading some mixed warnings on how ethanol can have a corrosive effect on metal, plastic and rubber parts in the fuel system etc, especially where fuel is stored in the tank for some time.

I use my Argosy infrequently (just owning it and using it now and again makes me happy) and am likely to go weeks on end without starting it up.

So just checking in with everyone in the US whether they have needed to replace fuel lines or take other steps to make sure their older Chevy engines don't suffer from any of the hygroscopic issues and whether any additives exist to sole any issues.

I will try and seek out the 97 octane fuel when I can but this is not always available and in the UK at all stations and could be phased out in 5 years or more (depending on Gov policy of course).

Many thanks
Frequent use of Seafoam in every tank Laurie.

US has been allowed up to E10 for some time now (driven by using the biofuel generated in the mid-west corn belt).

It rots old rubber fuel lines so make sure yours are replced with modern equivalents.
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Old 09-26-2021, 11:07 AM   #3
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Quote:
Originally Posted by martin300662 View Post
Frequent use of Seafoam in every tank Laurie.

US has been allowed up to E10 for some time now (driven by using the biofuel generated in the mid-west corn belt).

It rots old rubber fuel lines so make sure yours are replced with modern equivalents.
Yep, what Martin said. Use Sea Foam religiously and replace all of your rubber fuel lines with the latest and greatest version of rubber for fuel systems.
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Old 09-26-2021, 11:17 AM   #4
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Hi

The more ethanol in the fuel, the faster it will become water loaded. That's just how it goes. If you could get away with 6 months on the 5% stuff, figure a lot less with 10%.

I'd bet the issue will be knowing what you actually are getting at the pump. Here it's very common to see "up to 10%" stickers, but nothing at all about what really is in the gas. Yes, this varies and some states are better than others in this regard.

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Old 09-26-2021, 12:09 PM   #5
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While Sea Foam is probably better than *not* using anything, here is a quote directly from Sea Foam that points out the product can give a false sense of security for long(ish) term storage...

Quote:
Two answers: (1) One rule of thumb is avoid ethanol gasoline for any auto or motorcycle engine older than the late nineties. Your old Fords are not built from ethanol-proof fuel system parts that are able to resist the corrosive combination of ethyl alcohol and water. Just too risky! (2) Because Sea Foam adds protective lubricity to fuel and fuel system parts, it will always help. Even though Sea Foam will help protect against ethanol and water, be careful not to buy into any false sense of security that a fuel additive is going to completely counter the harmful effects of ethanol, particularly when left in a tank for a long period of time. Itís also important to add that ethanol works very well in modern engine fuel systems that are built for it. No worries there.
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Old 09-26-2021, 12:36 PM   #6
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One thing I have found with my older gasoline equipment is that they all do better with regular use. The newer fuel doesn't store well, and frequent use means less storage time. So, saddle up and hit the road more often, is my advice.

If course, having compatible fuel lines is also necessary.
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Old 09-26-2021, 02:26 PM   #7
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Brilliant - thanks all. I will check the fuel lines ASAP and take a look at Sea Foam.
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Old 09-26-2021, 08:34 PM   #8
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I use "Biobor EB" in all my equipment with small engines, it's suppose to help reduce the damage caused by ethanol and help for storing fuel.
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Old 09-27-2021, 09:54 AM   #9
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We use stabilizer in anything where the fuel sits for any length of time. No shelf life.
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Old 09-27-2021, 03:04 PM   #10
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Agree use a fuel stabilizer. Seafoam is an injection cleaner

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Old 09-27-2021, 04:54 PM   #11
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We have stations that offer ethanol free gas (Wawa for example). When I buy gas for my emergency generator I use that since it will be sitting around for a while. Do you have that option in the UK? It’s more expensive but might suit your usage.
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Old 09-27-2021, 05:14 PM   #12
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In Canada at least, premium fuel is less likely to have alcohol in it. I buy premium for my lawnmower. Whatís left in the Jerry can goes into my car in November each year.

For small engines like generators, a product like Aspen fuel is far more stable if youíre willing to pay the high price. Iíve only seen fire departments buy it to carry on their trucks to fuel their small engines.

Otherwise, consider using a fuel stabilizer like Sta-bil.
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Old 09-28-2021, 01:55 PM   #13
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Thanks all for the Fuel Stabilizer info - will research what's available in UK.
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Old 09-28-2021, 02:51 PM   #14
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Quote:
Originally Posted by martin300662 View Post
Frequent use of Seafoam in every tank Laurie.

US has been allowed up to E10 for some time now (driven by using the biofuel generated in the mid-west corn belt).

It rots old rubber fuel lines so make sure yours are replced with modern equivalents.
Seafoam is primarily a CLEANER...I use it in our Mercury outboard as a injection and,(sprayed directly in), cylinder bore, treatment for storage. None in fuel tank.

Sta-bil is the fuel stabilizer I use in the 53 Ford, Burb during the off Season, and all power equipment not used in Winter.👍

I did no fuel system mods when e85 first came out in our 53 ford, just added Sta-Bil year around. When e-free became locally available about 10yrs ago I started using it in everything petrol powered.
When towing I use efree when we can find it and any 87oct available when not.
High oct only benefits the engines designed for it, or if you have a tuner and can change engine settings.( I do have said Tuner but leave it on the 'Towing' tune.)
TETO

Bob
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Old 09-28-2021, 03:10 PM   #15
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My Tahoe is E85 "Flex-Fuel" rated but its hard to find that stuff and honestly it runs terribly on it (gas mileage suffers, engine runs hotter and at a higher RPM). The same fuel station that sells E85 near my house also sells E-free gas... so that's what I buy.

I've noticed that I can use cruise control more consistently and more often while towing when the Tahoe is running E-free gas. I can tow up large hills at a slightly lower RPM. Acceleration feels better.

However, if I run a tank or two of E10 and then immediately fill up to tow on E-free, I'm not sure if I'm getting the full benefit. I believe the ECM adjusts over time and it may take a tank or two for the computer to make adjustments to the engine. My Volvo explicitly states this in the manual (albeit, regarding 87 octane vs. 93 octane which it recommends).

You may look into having your truck modified with an engine tuning system that can optimize the engine's performance based on the type of fuel you are using at that instant and what you want to do (getting groceries vs. towing). If my car were worth a little more, I'd probably do that myself.
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Old 09-28-2021, 03:38 PM   #16
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From having seen this come in, in my area - one of the first things you should prepare yourself for is changing the fuel filter a few months into ethanol use. For some reason, the ethanol tends to break loose some fuel system deposits in the tank and lines, and those are (thankfully) trapped by the fuel filter.

May I tag on to what Bob said, offer a viewpoint based on years of use in marine environments. Bob is correct in recommending Sta-bil.
Quote:
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Sta-bil is the fuel stabilizer I use in the 53 Ford, Burb during the off Season, and all power equipment not used in Winter...
If it's available for you, Sta-bil MARINE is what you want, here's a link: https://www.amazon.com/STA-BIL-22240.../dp/B001CAW2DK

This is the only thing that I have seen that specifically guards against the type of damage caused from ethanol. I was clued into it long ago by a friend who had a powerboat ('stink-pot' - I was a 'rag-flapper' with an "iron spinnaker"). Since then, I have used it in my outboard's tank, and specifically my old tractors; never had a fuel-related problem with them, no matter how long they sat.

Hope that helps.
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Old 09-28-2021, 09:36 PM   #17
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I have two 70's vehicles and two 80's vehicles. I have been using 10% ethanol for years. All have original fuel lines. Never a problem. I have a 1985 inboard boat engine that also had had 10% ethanol for years. Never have had a fuel related issue. I did rebuild the carb when the boat was 24 years old just because it was time.
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Old 10-11-2021, 12:01 PM   #18
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E10

On your vehicle you will be more worried about water absorption which then leads to lower octane and the fuel degradation.

I am not a fan of stabil as it does not burn in the combustion chamber. It will preserve fuel.

A product called K -100 is superior in my testing as it stops the fuel from breaking and literally burns water.

A carb engine suffers more on e-10 than a fuel injection system. Iíve see concentration of 15-30 percent when I test station fuel.

You can check k-100 fuel on the Web. I am not a dealer
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Old 10-12-2021, 01:59 AM   #19
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Quote:
Originally Posted by Life is a Highway View Post
On your vehicle you will be more worried about water absorption which then leads to lower octane and the fuel degradation.

I am not a fan of stabil as it does not burn in the combustion chamber. It will preserve fuel.

A product called K -100 is superior in my testing as it stops the fuel from breaking and literally burns water.

A carb engine suffers more on e-10 than a fuel injection system. Iíve see concentration of 15-30 percent when I test station fuel.

You can check k-100 fuel on the Web. I am not a dealer
Thanks for this - not heard of K-100 before, but will check it out and we can get it in the UK.
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Old 10-13-2021, 07:02 AM   #20
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Quote:
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...... literally burns water.

......
Hi

It would be interesting to see the chemistry backup data on setting water on fire .....

Bob
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