To: dakota@csclub0.cs.fredonia.edu@INTERNET; justin@proxy-sys.com@INTERNET
From: Clement_D on Thu, Jul 11, 1996 2:08 PM
Subject: RE: Bosch Platinum Plugs
From: justin@proxy-sys.com@INTERNET on Thu, Jul 11, 1996 1:19 PM
>I bought some Bosch Platinum Plugs for my 87 Dakota V6. Before I replaced
>the Champion plugs, I put in an Accel performance coil (the cylinder one,
>not the big blocky one), new wires, rotor and cap several weeks ago. My
>power and mileage increased noticeably.
>After I put the platinum plugs last night, I noticed a power decrease.
>The engine hesitates a little and doesn't have that zippiness it did
>before. I let the engine warm up and drove around for awhile in various
>driving conditions, and still the same decrease in power.
>My question is, did I waste money buying these platinum plugs? I'm going
>on a long trip with my truck (about 3000 miles) and I wanted to try these
>plugs to see if I could get a little better mileage and power. However,
>if I have to sacrifice the power for a marginal mileage gain, I'll just
>put those Champions back in.
>Has anyone else had the same results with platinum plugs?
I have never had good luck with Bosch Platinum plugs in either my cars or my
motorocycles. I think it has to do with the very fine center electrode.
However, I love my Autolite Platinum plugs. They go in all my vehicles now
and give great service. In my Turbo Daytona's I have been changing them
every two years (55K-60K miles) and they still look great, little or no
increase in the gap when they are changed. Do not expect any increase in
performance or mileage as compared to a new conventional plug. The advantage
of Platinum is it does not erode over time so your performace/mpg stay's
more constant. All of the 100k mile tune-up cars come from the factory with
Platinum plugs.
The Autolites can be had for less than $2 a piece if you look for a sale.
The advatage of the platinum is on the positive electrode where material is
pulled from the surface each time the plug fires. Unless the vehicle you
plan to install them in has one of the new direct fire ignitions where there
is one coil per two cylinders the double platinums are not really an
advantage. These ignitions have one plug on each end ot the secondary
winding resulting in one plug having the center electrode (+) and the other
plug having the side electrode (+).
Dave Clement
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:07:24 EDT