Re: Bosch Plugs:The last comment

[PDQSHIP@aol.com]

In a message dated 96-01-09 10:46:35 EST, you write:

>
>After reading the latest response, I now understand the controversy.  We are
>not discussing apples and bananas, we are discussing apples and apples.
>
>I looked in the Bosch spark plug catalog.  There are two listings for the
>super secret security hidden F5DPOR plug.
>
>The catalog listing is as follows:
>
>Make,Year Model     Super         Platinum      Bosch O.E    Gap  Spark Plug
>                  Plug  Stock    Plug  Stock   Plug   Stock        Wire Set
>
>AUDI
>200,200Quattro
>1991 2226cc     W7DC    7500   WR7DP   4216    W7DTC   NA     .32   09-191
>                                                                    09-500
>1991 2226ccTQ                  F5DPOR   NA     F5DPOR  NA     .24   09-191
>                                                                    09-500
>
>1991-90
>90,90Quattro
>2309cc 10V      W7DC    7500   WR7DP   4216    W7DTC   NA     .32   09-191
>                                                                    09-500
>2309cc 20V                     F6DP    4227    F6DSR   NA     .32   09-191
>                                                                    09-500
>
>If you'll notice, the F5 and F6 Plugs are listed under platinum.  There is
>not a listing for platin because I use an English catalog.

The "P" is the Platin designation......  The POR is the serious duty one.....
 "DTC" is the copper designation - tri electrode the, plain DC is the single
copper electrode, the "DS" is the silver electrode.
>
>The June 26, 1995 Bosch Price Sheet lists the plug in question as follows:
>
>       Part        Description             List    Dealer
>      Number
>
>      FRDPOR   Dual Spec Platinum          29.30    19.05
>
>There is no magic bullet to this.  They are a special platinum plug that has
>an electrode that is twice the normal size hence the dual designation.
>These plugs are normally sold for $13.99.

Not quite correct, if you cut a DP plug electrode apart the "spot" of
platinum (or platinum tip as it;s referred) is not measureable in height.
 The POR Electrode (or platinum plug, as it's reffered to) protrudes .060
above the cone of the electrode, and is about 15X+++ the size (as in length)
of the DP.   And in fact, the Platinum plug has an electrode (before tip) dia
of .100" and the Platin has an electrode dia. of .175 (before "spot") The DP
is a top gap plug with no wear tolerance, the DPOR is a side gap with a wear
tolerance on the ground tip of .040......  Bosch has assured audi that the
DPOR is a 30k part on the S4, which had a propensity to eat all other
plugs.....  

I would have hoped that Bosch would feel obligated to educate distributors
and dealers to the differences in their apps and plug design......  It really
would help people who don't take the time to educate themselves.  And at
15.00 a piece, you'd think there would be some education dollars
available.......

Are the DP and the DPOR both platin/um/s, yessir.  Is there advantages to one
over the other, you bet.  Hope this exercise helps all that cared, and made
easy choices for those that don't.
 
MacGuyver emmuritus

Scott