E10 petrol

[Donncha 19]

Hi folks,

 

Has there been any great issues in using E10 grade of petrol in the Cortina as can't seem to find any petrol pump that sells E5 petrol locally to me.

It is a few years since the cars were running on the road and E5 was not an issue back then as it was at most petrol stations.

 

Thanks Denis.

[sheffieldcortinacentre 753]

Seems to be ok but does absorb water  so don't leave any in over winter.

Had some with water in only say palm size but caused alotta head scratching until drained.

Edited May 18, 2023 by sheffieldcortinacentre

[Donncha 19]

Thanks for that information Craig.

[SusanButcher 33]

An aside: E10 should be OK in early Cortinas because ethanol/petrol mixtures like Cleveland Discol were common in Britain up to the mid-Sixties. The Mark 1 had nylon and metal fuel lines, no rubber, and the original carburettor parts must have been  ethanol-proof too.

[GhiaMk4/5 207]

Just had a car in with a tank full of 1999 petrol, I drained it and I'm going to filter it and see if it will run my lawnmower, it stinks, but I'm sure it would still be flammable.

 

[bortaf 94]

On 5/18/2023 at 8:56 PM, sheffieldcortinacentre said:

Seems to be ok but does absorb water  so don't leave any in over winter.

Had some with water in only say palm size but caused alotta head scratching until drained.

I just had to rebuild a Pre XF carb on a boat for the 3rd time cos the owner keeps forgetting to run it out of fuel before laying it up for the winter TBH it's .ged internaly, 3 winters and the water has corroded the hell out of the insides, mind you there's a lot more water around a boat than a car (hopefully!)

[GhiaMk4/5 207]

Just replaced all the fuel lines on a Cortina based kit car, the seller assures me this is E10 compliant, bl**dy . fuel, this modern stuff, the petrol that was in the car has been in there since 1999 and it still smelt like "real" petrol.

[MK5dude 2]

Dudes, seen lots of youtube clips of old inline fuel filters degrading because of E10 fuel.

 

So, it seems i have to sacrifice originality and change all the fuel lines now...

 

Mk5 with the original VV carb. Any dudes know the internal diameter of the fuel lines I may have.

Also been told to replace the inline fuel filter with 81.0231 K&N inline filter which is E10 resilient .... any thoughts?? 

[sheffieldcortinacentre 753]

8mm I believe 

[pluto.weavil 14]

Yep replace those fuel lines! I've been using the E10 for a while and mines a daily runner but just gone back to e5 due to the car struggling with the trailer hooked up.  Just a lack of ooomph for me, no other issues so far.

[C0RKTINA 107]

57 minutes ago, pluto.weavil said:

Yep replace those fuel lines! I've been using the E10 for a while and mines a daily runner but just gone back to e5 due to the car struggling with the trailer hooked up.  Just a lack of ooomph for me, no other issues so far.

well as I understnd it your E5 is 98 octane so that should solve the lack of oomph. Presumably if you could get 98 octane E10 it would be OK too for power.  (we don't get the option of 98 octane here so I will fill it up on the way home from the Yat!

[Tigdlo 27]

I did a bit of research on fuel lines a while back, and it seems that the specification required is J30 R9 to cope with E10 fuel.

A problem is that the market is flooded with fake hose, with that marking PRINTED on it, whereas the genuine stuff has the marking MOULDED into  it. The other difference is that the proper stuff is a lot more expensive, so if it’s cheap, it’s fake!

 

[GhiaMk4/5 207]

I'm going to look into that, and if I've been sold fake, someone is in for a big bollo**ING, I mean talking to.

[mk4savage 62]

I've just replaced some sections of fuel hose that I'd overlooked previously. After a bit of research I bought Cohline 2240 hose which is R9 fuel hose. I may have been robbed slightly as I paid 22 quid for a metre and I've since seen it for 12 pound odd  

 

The writing is printed in blue on the hose not moulded into the rubber. Seems the same on all information I can find on it. 

 

I also replaced my in line filter with one that apparently is supplied with Weber carbs although it looks nothing like the one I've removed which was supplied with my Weber carb (was 20+ years ago though )

 

Bore diameter is 8mm but I think the actual size is 7.5mm Edit: on closer inspection is actually 7.3mm.

Edited June 6, 2023 by mk4savage

[Donncha 19]

Anyone trying out additives,

 

Here is one I have come across but have not used it has a dual purpose for the petrol treatment.

 

https://www.demon-tweeks.com/eu/tetraboost-e-guard-15-fuel-additive-with-ethanol-protection-lead-additive-tbotet15945/?istCompanyId=a2904180-3a7d-4e56-b876-cf81c9512180&istFeedId=0f6db192-3a9a-4369-b1f8-79615c622f96&istItemId=pwxppxlwm&istBid=t&source=aw&awc=6538_1686131128_0908023ec01fef71125156948b7525e9&utm_source=Affiliate_Window&utm_medium=Comparison+Shopping+Service+(CSS)&utm_campaign=323889/

 

This one I am currently trying in my lawnmower petrol before moving it on to my cortinas,

 

https://www.amazon.co.uk/dp/B08KY8Q1NJ?tag=track-ect-uk-23726-21&linkCode=osi&th=1&psc=1&ascsubtag=ecSEP454jlilizyq6.

Edited June 7, 2023 by Donncha