Life of electrical bits? (was: Strange Shuddering)

[Taka Mizutani]

John-
Although I agree with your advice in general, with regard to the Audi I-5
20vt engines (3B, AAN, etc.), I do not agree with your assessment of the
service life for these spark plugs in particular.

Bosch F5DPOR plugs (labeled "Platin" on the box) often last a good 60k
miles without any issues, even in high boost engines (read RS2 conversion
and the like).

Taka


On 2/21/06, John Larson <j.d.larson at verizon.net> wrote:
>
> IME, and I do lots of tuneup related business, spark plugs on your car
> have a maximum effective service life of around 15K miles.  I have most
> of my customers on a 10K mile service plan, but they "could" go to 15K
> without much problem.  I suggest you take a look at the plugs.  Caps,
> rotors, and wires usually last far longer.  The wires on my 250K 90 20v
> are original, and the cap and rotor have lasted since I replace the
> distributor at around 100K.  John
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