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airmail96 09-14-2012 10:52 AM

I know the crd calls for the low sulfur stuff, but I just found out I have access to bio diesel. Reading up on the lubrication properties, this seems like the best thing I could put in my motor and allow for longer injector life. Would there be any harm in running bio diesel in my crd?

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alan-crd 09-17-2012 10:03 AM

Re: Biodesiel
It depends on the % of the bio-blend. Don't use 100% bio. The CRD is only approved to 10% bio blend, and that is still pretty dry. I add 8oz. of Diesel Kleen to each fill-up. Hope this helps.

airmail96 09-21-2012 06:37 AM

Helped a ton, thank you much. Sucks that we can't use the higher percentage stuff.

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mrod 01-20-2013 10:47 PM

Re: Biodesiel
I run 70% biodeisel in my jeep all the time with no issues

suzieque 01-21-2013 08:33 AM

Re: Biodesiel
Your service manual should give you guidance for the allowable biodiesel percentage. If you exceed the recommended limit and have a fuel related problem at some point you may be denied warranty coverage.

fwdjeep 01-21-2013 10:06 PM

Re: Biodesiel
Personaly i would never use bio diesel
I respect my motor too much

selous 01-29-2013 03:17 PM

Re: Biodesiel

Originally Posted by fwdjeep (Post 745233)
Personaly i would never use bio diesel
I respect my motor too much

what he said

zlartibartfast 02-18-2013 09:17 PM

Re: Biodesiel
2% biodiesel adds lubricity to the cylinder wall and can aid in cleaning the fuel system (needs to be ASTM spec not just bathtub brew). Here in Texas we are now getting (up to) 5% bio at the pump. It's not like the terrible effects of Ethanol (yeah on your engine just like on your brain - what a country!) BD really is beneficial when properly blended.

I'm adding about 40 oz of pure BD to the pump fuel, along with some Power Service, in my 3L CRD and it runs great. Same thing for my Jetta TDI.

However, if you want to run B100, then you have to cut out the DPF, and that is illegal in all of the places I've been to.

curio 02-19-2013 02:20 AM

Re: Biodesiel
Be careful and respect the percentage of BD allwed by the manufacturer. the problem is not the lubrication but the chemical composition (ester) wich attacks some of the sealings within the HP pumps and injectors. that caused some problems in Germany, so most gas stations do not sell pure BD any more but diesel fuel blended at 5% BD.

Good luck


ggrassmid 08-18-2015 10:43 AM

Re: Biodesiel
Old thread.... I've run 20% Soy Bio in mine twice this summer. I wont run bio in the winters here in Michigan. I did seem to get a slight increase in fuel mileage when I ran the bio. I will probably stick to running it 2-3 times max through the summer months while also adding in PS Diesel Kleen during my regular fill ups. I do only use about half what PS says to use every fill up.

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