Bosch Platinum plus 4
Thread Starter
Racer
Joined: Apr 2002
Posts: 406
Likes: 0
From: BAY AREA CALI
Bosch Platinum plus 4
Is anyone using the bosch 4 prong spark plugs just replaced my platinum bosch plugs with the 4 prong ones but haven't started the motor yet waiting to install my valve covers.
Team Owner
Joined: Oct 2000
Posts: 96,443
Likes: 9
From: Fort Knox, KY
Cruise-In IV Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
Cruise-In VIII Veteran
I use Bosch Platinums (standard) in my DD and like them, but I'm leery of the four-electrode models. I'm scared one or more of them ****'s will break off into my engine and cause damage.
Intermediate
Joined: Mar 2003
Posts: 31
Likes: 0
From: Irvine ca
Bosch are crap! Had a set new out of the box with internal resistance problems...gave me a lumpy idle and took me several months to find. Put in some Delco Rapidfires and smooth as glass. No Bosch for me thankyou!
Race Director
Joined: Mar 1999
Posts: 16,950
Likes: 0
From: Stafford, Virginia Kittah, Kittah, Kittah...
I used them for a few years in my previous LT1 Vette, Northstar Caddy, and ex-gf's Cavalier... Never had a problem with any of them...
They were in the longest in my Northstar Caddy... 20K miles and no problems...
I'm using the +2s (about $2/ea cheaper) in my new Caddy and they're fine also...
They were in the longest in my Northstar Caddy... 20K miles and no problems...
I'm using the +2s (about $2/ea cheaper) in my new Caddy and they're fine also...
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Melting Slicks
Joined: May 2004
Posts: 2,524
Likes: 10
From: Lufkin Texas
St. Jude Donor '05-'06
I had'em for a couple of months with no problems but after learning in here that they have many problems, I went ahead and put in some AC Delco rapiid fire #5's and cut'em back while I was at it. No big change, but now I have peace of mind.
No big change, but now I have peace of mind.
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
This is my first corvette. The Bosch platinum +4 's are in her.
They work absolutely fine. Smooth idles. quick start, improved gas mileage.
I have used Bosch Platinum+4's in all 9 vehicles my wife and I have owned since '88 . I would not put anyother plug in my car!
They work absolutely fine. Smooth idles. quick start, improved gas mileage.
I have used Bosch Platinum+4's in all 9 vehicles my wife and I have owned since '88 . I would not put anyother plug in my car!
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Originally Posted by ZELLSLIFE
Is anyone using the bosch 4 prong spark plugs just replaced my platinum bosch plugs with the 4 prong ones but haven't started the motor yet waiting to install my valve covers.
Ed
