Fuel Hose Selection, Pipe Grading (Why R9 Grade), Connections & Clipping
For more information and guidance when looking at buying fuel hose, espically when restoring a classic car, please feel free to read the following article about correct fuel hose and fitting by Volksbolts.
When it comes to buying the correct fuel hose, Volksbolts is a leading UK supplier.
The fuel hoses that Volksbolts sell are purchased straight from two leading manucatures of fuel hose in Europe : Codan and Cohline.
Codan and Cohline.
Problems With Ethanol In Petrol
Ethanol & Oxygenator additions to Petrol are chemically aggressive and have a tendancy to infiltrate and attack the Rubber compounds historically used to make fuel hosing, 'O' rings and accelerator pump diaphragms. These rubber components perish, swell and crack under the influence of Ethanol and ultimateley fail in their function. |
So if this happens to your fuel line, when you are checking it or looking at replacing it it is not made by Codan or Coline and needs replacing right away.
There is a lot of anecdotal evidence on Internet Forums and increasing quantities of formal Technical Reports supporting this viewpoint; In both Automotive and Light Aviation user groups.
A report from QinetiQ (The old Defence Evaluation & Research Agency, DERA) has been published highlighting these concerns in relation to Light Aviation where MoGas (ordinary Petrol Station Petrol) is used
When you look at the fuel hose you should clearly see the layers and none of them should have become unbonded. If the fuel hose looks damaged plase contact Volksbolts directly for further information.











