Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Mercedes-Benz SL Discussion Forum

LinkBack Thread Tools Display Modes
Old 01-10-2010, 04:11 PM
Registered User
Join Date: Jul 2005
Posts: 56
sparkplugs for r129 119 engine

I'd like opinions on the use of platinum plugs in my 91 500sl as opposed
to conventional plugs...Thanks
Reply With Quote
Old 01-10-2010, 05:43 PM
Registered User
Join Date: Mar 2007
Location: Florida
Posts: 130
Stick with the recommended plugs. Hundreds of posts on this site will say the same thing. Don't waste your money.
Reply With Quote
Old 01-11-2010, 05:47 PM
Registered User
Join Date: Aug 2008
Posts: 212
Plugs for SL300?

I have a '95 SL500 and I run the Bosch Iridium plugs and there is NO PROBLEM regardless of what has been written on the forum. I did this BEFORE I started following the forum for help and I have read all of the threads on this topic. Since I put them in, there has been absolutely no issues or misses with mine. Steve
Reply With Quote
Old 01-12-2010, 06:54 AM
Registered User
Join Date: Oct 2007
Location: Greater Metropolitan Beaverdam VA
Posts: 2,534

I sort of agree with Lee with a caveat.

Platinum plugs should work just fine ... but ... they were intially developed for long life as compared to conventional copper plugs. For our cars (I have an '88 560SL) with aluminum heads I find it theraputic to remove, inspect, sandblast and reset plugs once per year anyway. I find many disagree with that practice but I have the horrors of finding a plug frozen into that aluminum head after being left in place for years.

I use copper core plugs since periodic removal offers the opportunity to change them if deemed necessary and they cost a lot less plus are the original factory recommendation anyway.

Bottom line is, I agree that platinums will work fine. Just don't get suckered into any kind of multiple electrode plug since that is just a sales gimmick. The laws of physics prevail and the spark will jump the point of least resistance at all times.
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 12:51 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page