Odd spark plug colour

[Huw Powell]

> Pulled the plugs on the 90 20v today (7a eng code) just to have a
> look at the condition been in now for 20k miles. The colour was an
> orange colour almost like rust, never seen this before just wondered
> if anyone out there has any kind of explanation. I do use an ocatane
> booster in the fuel but can't believe it's that. Car runs fine.

I figure, if the car runs fine, and the plugs all look the same, and 
they're not black or burnt, things are fine.

Would still be interesting to find out why they turned orange, though. 
Got pix?

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/