Bulley wrote:

>  Most FLAPS can help you decide which heat range is
> best for your motor if you bring in the used (10k+) ones from your motor.
> You may want to check out a book from your library, or scan that newfangled
> internet thing for pictures of used plugs, and what various appearances
> indicate.

>
> Thanks for that explanation on plug heat ranges.  The knowledge is
> appreciated.   What does "FLAPS" stand for?

John McLean  87 Vanagon GL