[cb4]

There is a service station near my home that sells bio-diesel and was wondering if the BMW diesel engines run on it. I understand that the bio-diesel is not to be used in the winter, but can be used without any problem 3 out of the 4 seasons here in New England in most modern diesel autos.

Can the 335d or the X5d run on bio-diesel?

[TexAg06]

Originally Posted by cb4

There is a service station near my home that sells bio-diesel and was wondering if the BMW diesel engines run on it. I understand that the bio-diesel is not to be used in the winter, but can be used without any problem 3 out of the 4 seasons here in New England in most modern diesel autos.

Can the 335d or the X5d run on bio-diesel?

only warrantied to 5% i believe

[machine]

I would not suggest it... I think it voids the warranty.

[anowlan]

Originally Posted by cb4

There is a service station near my home that sells bio-diesel and was wondering if the BMW diesel engines run on it. I understand that the bio-diesel is not to be used in the winter, but can be used without any problem 3 out of the 4 seasons here in New England in most modern diesel autos.

Can the 335d or the X5d run on bio-diesel?

The gas cap says: no additives. Max b5 biodiesel. So yes. It'll run on 5% biodiesel.

[F32Fleet]

IIRC the manual says B7, but nobody sells B7. I've thought about it myself, but there isn't a station within a reasonable distance (Atlanta) to make it worth my time.

[HoustonScott]

The owner's manual says B5. If you read up on bio diesel you will fined that there are many good reasons to use it, if you can get B5 in your area I would use it, your car may be better off for it...If anyone is interested I will list some the value of using B5 in your engine.

HS

[F32Fleet]

Originally Posted by HoustonScott

The owner's manual says B5. If you read up on bio diesel you will fined that there are many good reasons to use it, if you can get B5 in your area I would use it, your car may be better off for it...If anyone is interested I will list some the value of using B5 in your engine.

HS

speaking of Biodiesel. Ne1 know who the parts supplier is for the HPFP on the diesels? I posted a link in "335d additives" which is a press release/statement from some major fuel injection supplies (Bosch, Stanadyne, etc) which stated that using U.S. diesel* will shorten the operational life of their product.

* US Diesel is made with a slightly higher scar wear rating than Euro diesel.

[anthonygelman]

Well.. my car just hit about 1000 miles.

I have been using B2 since and just today I switched to B100.
The only things ive heard is at first if your car has been using petrodiesel for a long time the bio diesel will clean everything and cause ur filter to go faster at first..

According to everywhere Ive checked pretty much any diesel engine is capable of running biodiesel. There have only been issues with older engines because the biodiesel ate away some specific tubing.. but those have since been eliminated in any engine produced recently..

[ibimmer954]

You can run biodiesel, but it will contaminate the oil more quickly. That's one of the main concerns on the current VW diesels. If you run higher than B5 then you better change the oil much more frequently. Also note than bio could mess with the emissions system as well.

[anthonygelman]

so change the oil more frequently.. i love doing that. Love to have my car feeling clean inside lol. The emissions system is gonna squirt that nox negative stuff in regardless right?

[F32Fleet]

Originally Posted by anthonygelman

Well.. my car just hit about 1000 miles.

I have been using B2 since and just today I switched to B100.
The only things ive heard is at first if your car has been using petrodiesel for a long time the bio diesel will clean everything and cause ur filter to go faster at first..

According to everywhere Ive checked pretty much any diesel engine is capable of running biodiesel. There have only been issues with older engines because the biodiesel ate away some specific tubing.. but those have since been eliminated in any engine produced recently..

Contratulations...You just voided the warranty on your fuel injection system.

The B100 will very likely turn into gum within your injectors due to the extremely high pressures and it will kill your DPF and oil. Word is B100 turns motor oil useless (dilution) in about 2000 miles in the 2009+ VW TDI's.

Save the bio for the late model VW/MB whose injectors run at much lower PSI.

[HoustonScott]

The statements about the VW are true for the newer models and Bio. The interesting thing is why. I hope I can explain why they have trouble with bio. VW doesn't use the AgBlue system that BMW and MB use. The way they get the system to meet EPA standards if different. What they do is after the combustion of the diesel on the power stroke the injector squirts some fuel into the cylinder as the exhaust leaves the cylinder and is burned in the exhaust to reduce NOx. This causes a problem for injectors that the BMW doesn't experience because the BMW doesn't do that, the AgBlue does the job and very well I might add, it's clean very clean. It has nothing to do with high pressures.

HS

[anthonygelman]

Thanks for all the replies I still feel like no one has an official answer for this..

[HoustonScott]

The short answer is YES, B5.

HS

[F32Fleet]

Originally Posted by anthonygelman

Thanks for all the replies I still feel like no one has an official answer for this..

Pg 115 of your manual states B5.

Like I said. Leave the B100 for the late model VW/MB.

If you're worried about lubricity then B2 is all you need. Anything more and you get no improvement. Now move along cause I'm thinking....

[Jim E.]

Originally Posted by anthonygelman

Thanks for all the replies I still feel like no one has an official answer for this..

Yes you can use B5 and yes I've used it in my 335d with no noticeable improvement or degradation of any kind.

ymmv

[anthonygelman]

Haha okay thanks.

[Rebel_Fan]

How is your car doing on B100. Any issues yet?

[anthonygelman]

nope none whatsoever! 6300 miles 5,300 on b100... sooooooo ya im doing fine

[F32Fleet]

Originally Posted by anthonygelman

nope none whatsoever! 6300 miles 5,300 on b100... sooooooo ya im doing fine

On 6/24/10 you posted that you just drove 1k miles and were going to switch to B100. So are you saying that you've driven 5,000 miles in two months?

[Coolieman1220]

so i know i could google this and figure it out but what exactly are the benefits of bio diesel and the differences between the ratings.

i should google to educate and i probably will but just so u guys can tell me w/ your experience.

[Thud]

You pretty much have to stick with an old diesel if you want to run "alternate" diesel fuels.

There are plenty of guys running old Mercedes diesels that are converted to run on used frying oil. They basically get their fuel for free if they know fast food restaurant owners and the exhaust smells like french fries.

Owners of new "clean diesel" engines will never know the pleasure of french fry exhaust.