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Winter Diesel Additives, 1.6Tdci Blocked Fuel Filter

Diesel fuel filter supermarket fuel

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#31 jst008

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Posted 05 April 2013 - 07:50 AM

Probably the last word on this subject, I have received an official reply from Ford Technical Information Centre who state...

 

“…..This concern is being investigated by all vehicle manufactures at present, not just Ford.


The concern is noted to occur in cold weather conditions.  It is suspected to be caused by a differing bio fuel composition between different fuel manufactures.  When the differing bio compositions are mixed in a tank, a reaction appears to be happening under cold weather conditions, forming a jelly like substance, which produces a restriction in the fuel filter.

 

However this is still being investigated & we are unable to provide a definitive answer.  The above explanation is what we believe to be happening at this stage of the investigations.  It has been confirmed however to be a fuel issue, rather than an engine of duel fuel system design concern.

 

I can also assure you that all vehicle manufactures appear to be reporting the same concern this winter, not just Ford…….”



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#32 turnbulldr

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Posted 10 July 2014 - 12:26 PM

I also have this 1.6d mondeo and living north of Herts, in Scotland where the average temp is 5 degrees colder I have not had this issue. However, I have always been somewhat disappointed at MPG and the car was stuck at 48.6 regardless of what I did or however I drove. A couple of months ago I dropped into an Esso garage and mistakenly filled up with premium deisel which at 14p per litre more was a tad expensive. Whatever was in the fuel, be it cleaners, detergents or cetane boosters, I noticed the car was more responsive right away and after about 300 miles the MPG started creeping up. It is currently at 50.5, despite using plain old supermarket fuel since then, so if you are having fuel/filter issues it might be an idea to pay the extra £12 and fill up with this fuel to see if it sorts out the problem (far cheaper than another fuel filter). Currently I intend  not to use any redex/millers or other additives but to use cheapest fuel all year but once every six months, to get a tank of the premium fuel. As this car is Euro 5 and has the cat I also spend 20 mins running it at 70mph in 4th gear (thus acheiving the 3k revs) on cruise control either very early on (around 2am) or late at night (11pm) on the motorway so. The car is noticeably better for the next week or so and it should prolong the cat's life. let me know if this works for you.



#33 jeebowhite

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Posted 10 July 2014 - 04:21 PM

Not sure how this thread skipped me by, but that is an excellent post by John!

 

It seems to make more sense now!



#34 bry0586

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Posted 10 July 2014 - 04:53 PM

just been reading through this and did what i read is right, diesels like umm injectors pressure etc is 1,800 bar????



#35 jeebowhite

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Posted 10 July 2014 - 07:41 PM

Yeah they are high pressure systems

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#36 bry0586

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Posted 10 July 2014 - 07:44 PM

Wow.

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#37 SandyCat

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Posted 11 July 2014 - 07:40 AM

When I had my Mk3 TDCI I had terrible cold weather lumpiness and cutting out. 

A bottle of BG244 in a full tank of Shell cured it and I just repeated it every 12 months and never had any more problems.



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