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Old 12-17-2004, 08:46 AM
myanoch's Avatar
Registered User
Join Date: Aug 2004
Location: Scranton Pa.
Posts: 239
I installed the bosch copper w9dc new bosch # at pep boys is 7511
Gapped them at .044 (only difference from stock)
They are dirt cheap and work
I bought an extra set at the dolllar+ price
Why look for problems
There is plenty of other items to maintain on this old car
I followed the letters on this form and the boys were right
They work .....
[B]Mike Y.
00 sl500 sport
88 560 sl (sold)
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Old 12-17-2004, 09:09 AM
boneheaddoctor's Avatar
Senior Benz fanatic
Join Date: May 2004
Location: Hells half acre (Great Falls, Virginia)
Posts: 16,007
Originally Posted by nhdoc
Does anyone have any experience with the Platinum +4 plugs? They are the ones with the electrodes around the edge of the plug...I installed a set last month and have been pleased so far with them in my 1988 560SL....does anyone else have stories about these?
In the honda world they are frowned upon....and proven to be no better, infact there is more shrouding of the spark, and there has been cases where one of the 4 tips came off causing engine failure.

Sounds great on paper, but in practice it doesn't live up to the claims.

But give them a try, just because it doesn't work for Honda tuners doesn't mean it won't work on the Benzes.
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
Section 609 MVAC Certified
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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Old 12-17-2004, 09:12 AM
yal's Avatar
yal yal is offline
Join Date: Oct 1999
Location: New York, Long Island
Posts: 2,705
I know that and you know that but every Pepboys, Autozone or whatever will try and sell you platinum plugs the minute you walk in the door. If you get a chance to look over the shoulder of the store clerk you will see several platinum plugs listed as recommended.
Its a shame for people who don't know.

But then again maybe some don't care. Take the Ipod for example, better models out there but who cares LOL
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