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E10 fuel. Are we ok

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Just read from September E10 will be the standard at forecourts.

Apparently 10% ethanol and is more corrosive.

Additionally it’s apparently less stable that current petrol meaning cars stood for periods of time May have trouble starting.

Anyone know if the GTI is able to use this. Specifically 1980 EG engine 1.6 kjet. I am literally putting in a new fuel tank, pump and accumulator at present and hopefully won’t be f’d up by ethanol content.


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E10 fuel. Are we ok

Just been reading super unleaded is not changing for another 5 years so we will just have to use that


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GTi 's are best run on super unleaded as it's got a higher RON rating so you don't need to retard the timing like you need to to use normal unleaded.

1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 300,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.

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E-10,  E-15 aren't really backwards compatible.
Those can eat older non-e rated fuel lines.

I am really sorry that ADM and AE Staleys the Development of that blend (Old Home Town Corn and Soy Bean giants.)  They also developed TVP that is Textured Vegetable Protein in the 60/70's based on soybeans… Baco's Bacon bits were developed by them as well.

Back to the thread.  Years ago in the 70's I was rocking a Rover 3500S, and on the gas cap it said min 105 Octane.

I usually treated the car on AV/Gas once a month, and back then it was about 2 bucks USD a gallon, where Premium was about 40 cents per gallon, and regular 90 octane then was 29.

I wouldn't be too concerned with metallic fuel components, just the rubber ones that were never e-rated when they were built.

e-15 rated hoses or even fuel submersible hose is about 3 times as much over here as regular hoses and such are.  I understand that most manufacturers are using mostly e-15 in their newer stuff.

What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?

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Well mines ran on rain water mixed with petrol for years so i will take my chances  :lol:

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Apparently the ethanol aborts water like brake fluid does which will cause corrosion in a lot of parts as well as the ethanol itself attacking rubber parts 

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I read this, and I had a chat with my dad about it. As we currently have my mk1 as a restored rolling shell awaiting full rebuild, we're going to discuss options with our guy about using fuel lines that would accept E10 fuel and not cause fueling issues, tank issus or corroded lines etc. Hopefully we can just rebuild the car using lines and I'll be all good to use E10 or Super Unleaded.

Also hoping that they don't extend the ULEZ zone even futher after October in the future, as I'll have to end up getting rid of my Mk4 and get a new car :/

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Yeah I must admit in brum they've implemented the CAZ on the inner ring road, I hope they don't plan to expand that anytime soon either 

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It will be okay for our mk1's as historic taxes vehicles are exempt. I hope this doesn't change.

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I've also seen a few videos on how to remove the ethanol from fuel fairly easily but it has one drawback 
Apparently the ethanol raises the octane rating quite a bit so removing it from 95 Ron e10 will likely bring it down to 91- not good 
Sounds like naff fuels being imported and ethanol added to get rid of cheap fuel.
Ironic as using super fuels are proven to burn cleaner with less emision so why not bring the price of it down as an incentive to use it instead of normal fuels??
Back to e10, hopefully it only effects the rubber fuel lines and a few o rings that can be changed out for ethanol proof types 
Only issues I can see is the collection of water from stored cars in the winter 
I'm wondering whether to use one of those tank repair kits in my new rust free tank so it forms a kind of liner to protect it?

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Actually Ethanol and Water do mix.  
Over here we add HEET or Fuel antigel to our tanks in the winter to keep fuel lines from freezing and it is mostly Alcohol, as it absorbs water.  Stabil is another good additive to prevent sour fuel issues or I should say stored fuel.

At the end of the season I usually add Stabil to all my gas in Cans, as well as an octane booster.

What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?

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Ethanol in petrol leads to sludge and clogged fuel lines.
Eperienced this two years ago on my Mk1 convertible.
Since than I only use Shell V power 98 RON.
In Belgium this petrol contains no ethanol.
I always store the car for longer periods with a full petrol tank.
No air in the tank means no air humidity to mix with the petrol.

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Keeping the tank topped up for those reasons sounds like a good idea 
Might have to start doing that 

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E10 fuel. Are we ok

As I am replacing all the back end fuel system I only have to worry from the fuel filter forwards as all rubber parts are e10 compliant as standard. (Some e40, I guess this is for Latin America use). My concern would be the k jet metering head seals and the beaded injection hoses.

All that said going to use super unleaded once it’s back together and then don’t have to worry about it anyway.  It’s only uses about 1000 miles a year if I am lucky, spends most of its life on axle stands lately.


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lets just hope it works

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For longer storage keep in mind that the E10 mixture is only as good for a periode up to three months. If you plan to use E10, you still might want to fill up w/ premium non-ethanol petrol right before parking up for the winter break.

Are there any other components that might get affected by E10, other than fuel lines and plastic bearings? (On the engine side ie.)

ReinoutMK1
1983 Golf 1  GTI  1.8 16v

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B3C Ethanol Shield Fuel Stabiliser 118ml

Do not know a lot but willing to help if possible

1989 Sapphire Blue Mk1 Cabriolet 1.8 DX
1985 Atlas Grey Mk2 GTI 2.0 ABF

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Josh Barber said

It will be okay for our mk1's as historic taxes vehicles are exempt. I hope this doesn't change.



Historic tax? How old does the car have to be?
I have an 84 Campaign and now the zone ends at the end of my road!

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E10 fuel. Are we ok

40 years old.


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I'm suprised there's not more coverage on fuel stabilisers to prevent ethanol issues 
Doesn't seem to be much information freely available till you go digging deeper 
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