I know spark plugs have been discussed countless times before but I have some additional questions. I'm thinking about going ahead and changing the plugs in my truck. I know Motorcrafts are recommended by most, Autolites are hit or miss, & to stay away from Bosch platinum +4s. I know Iridiums are good too, just expensive. But what I'm asking is has anyone tried Denso platinums, NGK G Power platinums, or regular Bosch platinums? I'm just exploring possible alternatives to the $5 a piece Motorcrafts.

 

Use the $5 Motorcraft plugs, based on feedback here and other sites thats what I purchased for my truck.
Do Not use Bosch anything
Haven't used the NGK on the truck, but they work fine in both my Corvettes and my old Mustang (RIP)

 

Motorcraft SP432's are $3.97 each at rockauto.com.

 

What about Denso Platinum TT Plugs? They are on sale at Advance right now, but they are usually the same price as Autolites and NGKs.

That's a better price, but with shipping it will be about the same price as at any store.
I'm debating between NGK or Denso unless I decide to go with Motorcraft.

 

I'll go with either NGK or Denso Irradiums! I've ran both and work real good... I'm currently running E3's. Thought I'd try these for a change!

 

Has anyone tried the Denso Platinum 4511s?

 

i know some of the forced induction guys run denso's or NGK because they come in diff. heat ranges.

 

Yea, I have about 25,000 on a set of Denso's. I can get 16 mpg with'em @ 78 mph. - empty. Yea I know , that's nothing to brag about, -but before I couldn't get 15 mpg @ 60 -65 mph.

I believe in those Precious metal plugs. For once I've honestly seen improvement , - maybe not in the way I drive, but you still get the idea.
It's pretty damn consistent. Those plugs don't really require as much voltage to spark, - if your running fine wire center electrode. Less stress on these COP system the better.

Double Platinum and Iridiums Platinum plugs have that platinum chip on their ground electrode. There can be differences in the quanity of Platinum and the shape of the chip.

The internal resistance in some Platinum and Iridium plugs differ from the standard resister plugs. So make sure you take care of your noise suppressors on each side, - Check that connector and most of all, - make sure they're grounded well. You' could be e going thru coils if you don't lol.

 

Yea, I have about 25,000 on a set of Denso's. I can get 16 mpg with'em @ 78 mph. - empty. Yea I know , that's nothing to brag about, -but before I couldn't 15 mpg @ 60 -65 mph.

I believe in those Precious metal plugs. For once I've honestly seen improvement and it's pretty damn consistent. Those plugs don't require as much voltage to spark, - IF, your running a fine wire center electrode. The Less stress with these COP systems the better.

Double Platinum and Iridium-Platinum plugs have that platinum chip on their ground electrode. There can be differences in the quantity of Platinum and the shape of the chip.

The internal resistance in some Platinum and Iridium plugs differ from the standard resister plugs. So make sure you take care of your noise suppressors on each side, - Check that connector and most of all, - make sure they're grounded well. You' could be e going thru coils if you don't lol.

 

You must really believe it since you posted it twice! LOL

 

Some things are worth repeating I guess?

 

I ended up buying the NGK G-Powers & put them in today. Runs fine.

 

Never mind...

Mitch

 

Boy, I'm still trying to figure out how I did that. (?) - One post being a little different than the other ...

File it under - Multi tasking madness. Great, now I'm getting a complex

 

Hi,
I am the tech manager for Autolite. One time offer to you only- I will send you a free set of Autolite XP Iridium fine wire spark plugs for your truck. As long as you let forum members know if you like them, hate them or anything in between. Email me at Jay.Buckley@Honeywell.com and I will ship them out.