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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKVI-A6 Golf family including Jetta SportWagen (~ 2010-2014)

VW MKVI-A6 Golf family including Jetta SportWagen (~ 2010-2014) Discussions area for A6/MkVI (2010-2014) Golf and Golf Wagons (Jetta Sportwagon in the USA).

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Old February 13th, 2018, 10:59   #1
mbesemann
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Default B5 or even B20 in CR TDI?

I know this technically belongs in the Biodiesel forum but since I'm asking it from a mk6 perspective I figured I'd post here.

Has anyone run B5 or even B20 in their CR TDI? Is this a really bad idea considering how finnicky the fuel pump is? I heard that if you do start running biodiesel you should account for a fuel filter change in the next few thousand miles because of all the "guck" the biodisel pulls out.

I have an EGR & DPF deleted car so the blow-by issue should not be a factor.

Thoughts?
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Old February 13th, 2018, 11:16   #2
MichaelB
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Quote:
Originally Posted by mbesemann View Post
Is this a really bad idea considering how finnicky the fuel pump is?

I have an EGR & DPF deleted car so the blow-by issue should not be a factor.
Thoughts?
Your so called finicky fuel pump will be better served by a bio blend as it has greater lunricity.
What blowby are you talkin' about?
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Old February 13th, 2018, 11:45   #3
mbesemann
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What blowby are you talkin' about?
I believe when the DPF does a regen some unburnt biodiesel can contaminate the engine oil so you'd have to check for rising oil levels. That should be one less thing to worry about with a deleted car.
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Old February 13th, 2018, 13:48   #4
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You're fine. Most of the pumps around here where I live are 5% bio. Haven't had any problems with the bio just hurricanes =D
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Old February 14th, 2018, 05:29   #5
Diesl
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Illinois owners got a letter from VW stating that up to 20% biodiesel is OK, and to just watch out for rising oil levels.
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Old February 15th, 2018, 08:44   #6
740GLE
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The other concern with high bio blends are the cloud point is dropped unless proper additives have been added.

I'm sure up in Quebec if its a local bio refinery they will blend plenty cold enough as the weather changes, but still something to be aware of.
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