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Classic Engines, Modern Fuel

Comments on Topic: Ethanol proof petrol hoses

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Submitted by The Author
29-Jun-2021

I have spent some time researching the internet to find the specification of ethanol proof petrol hoses as replacement. I have found, the specification they must meet is: DIN 73379 Type 3E (Rev. 11/97). (See specification). Make sure you search for Type 3E.

And ...... it is expensive. Do not be fooled by the cheap products.

In the UK I have found a reliable supplier of hoses and clips: Advanced Fluid Solutions

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Submitted by Rich
15-Jul-2021

yes

Presicely what I fitted some months ago. The Cohline stuff appears to be a popular choice.

The link for the supplier doesn't work for me, but Car Builder Solutions (UK) sell it also. At £5 per metre it may be expensive, but surely far less expensive than a failure and the results of such...

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Submitted by The Author
16-Jul-2021

If you order the Cohline piping, check it meets the specification: DIN 73379 Type 3E (Rev. 11/97).

Cohline sell a range of petrol hoses, not all of them to this specification. Link now fixed.

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Submitted by Rich
16-Jul-2021

This is what I fitted, do you consider this as suitable

https://www.carbuilder.com/uk/ethanol-proof-fuel-hose-6mm-14

Back in March this was £5 p/m , seems to have doubled in price since angry

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Submitted by The Author
16-Jul-2021

I have had a look at the Carbuilder website. It only shows the spec as DIN 73379 it does not give the Type code. I have found a Type B which does not appear to be as ethanol proof as type E. The specification for Type E certainly says it is. I suggest care when buying replacement fuel hoses to check not only the DIN number but also the Type.

As for price, I am not suprised. I bet demand has increased dramatically since the Governments statement.

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Submitted by Rich
16-Jul-2021

This website suggests it is Type 3E,

Data Sheet

as does this site and many more like it.

https://www.merlinmotorsport.co.uk/p/high-spec-rubber-fuel-hose-by-cohline-per-metre-2240-0600

"The Type 2240 hose has a working pressure of 10 Bar with a burst pressure of 50 Bar. The 7.5mm bore hose has 13.5mm O.D. whilst the 10mm bore has 15.3mm O.D. Rated to DIN 73379-3E specification."

I am just trying to make sure what I fitted is indeed suitable, and given the amount of sites that say the same thing - I am going to say it is.

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Submitted by Anonymous
27-Jul-2021

I thought that the ethanol tolerant spec was SAE J30 R9. It is certainly claimed to be.

It seems that some people claim that the DIN Type E and R9 are equivalent.

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