spark plug dilemma
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New User
Joined: Aug 2003
Posts: 1
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From: Quintana Roo, Mex
spark plug dilemma
I have my '98 5.4 Expy (80k miles) in remote Mexico and just brought back new Bosch platinum plugs from the States. Then I read several messages on this board saying the Bosch Platinum +4 is the only way to go if one is going to the trouble to change the plugs.
Should I eat the cost of the plugs I already bought and have someone bring me some +4s from the States? Will they make that much of a performance difference compared to the single platinums and will they pay for themselves in fuel savings?
thank you
Should I eat the cost of the plugs I already bought and have someone bring me some +4s from the States? Will they make that much of a performance difference compared to the single platinums and will they pay for themselves in fuel savings?
thank you
New User
Joined: Aug 2003
Posts: 3
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From: Chandler
spark plug dilemma
I had a set of +4's in my 91 Explorer and the insulator was cracked and chunks missing in two of them when I was checking them after 30K. They are nice, but where did the chuncks of insulator go?
Good double plats from motorcraft are all you need.
Good double plats from motorcraft are all you need.
Postmaster
Joined: May 2002
Posts: 3,028
Likes: 1
From: Annapolis, Maryland
spark plug dilemma
I've heard mixed reviews of the +4s as well - everything from increased power and gas mileage to having several plugs burning up and falling apart.
The OEM Motorcraft double platinums seem to be the way to go - even Racerguy, a Ford tech who's on this forum, says they're the best plug available.
XXL
The OEM Motorcraft double platinums seem to be the way to go - even Racerguy, a Ford tech who's on this forum, says they're the best plug available.
XXL
Elder User
Joined: Nov 2002
Posts: 736
Likes: 1
From: Texas, USA
spark plug dilemma
I went 100K miles on the original Motorcraft plugs with no hint of any decrease of performance or mileage. I only changed them on a matter of principle... I prefer preventitive maintenance to waiting until something breaks since I'm often in very remote areas.
More Turbo
Joined: Feb 2003
Posts: 521
Likes: 0
From: Alexandria, Ohio
spark plug dilemma
Bosch plugs and Fords do not work well together. It took me 2 sets of plugs and wires and losing one cylinder at a time to convince me and it now has Motorcraft back in with no problems at all!
