unleaded with a cat?

**richardb** · #1 4 Feb 2004

I´ve got an F650 GS with catalytic converter. I´m headed for Brazil where I hear unleaded fuel is non-existant. I have heard different views on what will happen if I put leaded in the tank. I thought it broke the cat, and becuase of the sensor feeding info back to the electronic brain, the fuel consumption rises dramatically. I have also heard that people have had no serious problems except for slightly lower fuel efficiency caused by low octane levels.

Should I go to the effort of trying to get a new exhaust without CAT in Argentina, which I will have to dump again back in the UK, or just wing it and see what happens.

Advice appreciated.

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Richb
http://www.postmaster.co.uk/~richardbeaumont/60684/

**pierresas** · #2 5 Feb 2004

If you are staying just a few months, I would just leave the catalyser. Otherwise, I described on another thread how to remove it (see Removing the catalyser on F650 GS).

Pierre Saslawsky
http://www.photobiker.com

**spakur** · #3 5 Feb 2004

Have you checked the www.f650.com site???

Search the technical faq and the forum (f650.com) on the subject and you'll find plenty of information on the subject.