Biodiesel

[diesaroo]

Originally Posted by JCL

We don't have any manufacturers where I live, it is all homebrew. That can't legally be sold, but some co-ops are importing biofuel blends. Since that props up the ethanol, canola, and soybean producers, all of whom would be otherwise producing food crops, there is some debate on the whole topic. I don't have to worry about biodiesel with my vehicle, but I drive further and pay more in selecting fuels, just to avoid supporting the ethanol industry.

A B2 blend is beneficial for cetane and lubricity, but anything over that is not necessary and may be harmful with a bad batch. Using large volume truck stations should rule out that problem.

IIRC there is a company Green Gallon Solutions in the US that processes waste vegetable oil into ASTM Biodiesel.

In my petrol powered car, I also make the trek to the only ethanol free station to fill up in my area. I think once straight gas is unobtainable, I'll need to look into a natural gas conversion.

[Thunder22]

I filled up today with B5 at a Sunoco, didn't see the sticker until it was too late. But from what I've read, BMW is ok with up to B5. I'm going to check the Hess by my office once I've run the 520 miles it will take to empty the tank of the B5

[WWONG]

This thread worries me. All the stations (I'm talking an upwards of 20 different stations/companies) all say it may contain up to 10% biodiesel. I'm in Houston and I'm not sure a station with pure diesel exists here.. what am I supposed to do?

[conedoctor]

I had noticed a drop in my mileage on the GL and sort of put 2 and 2 together, little sticker reads "may contain up to 20% biodiesel"

I filled up at a different station and already I am up at least 10% economy, car runs fine still but not worth it.

[Wolfgang Gullich]

Originally Posted by Penguin

Unless BMW has changed their policy, I believe anything over 7% biodiesel is not permitted under BMW warranty terms. Using B20 gives BMW a hook with which to try to deny warranty work if you get a clogged injector or some such failure.

The manual of my '11 X5d says you can use up to B10 (10% biodiesel)