• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Absolute BEST spark plugs out there?

K

KDOG

Diamond Member
Well its about that time I'm almost at 60K, so I'm gonna go ahead and do this before I go on vacation in April. I recently purchased a camper so I want to squeeze every little bit of power and efficiency out of my beast. I've heard positive things about Bosch Platinum +4s' - like they put out the best "bang" - to negative like they're junk and the tips break off into the cylinder. I've heard of Iridiums, but don't know much about them.


So I'll ask all you car peeps, what would be your choice for spark plugs? Cost isn't an issue since its only done once every great while. As far as the other stuff I use, I use Mobil 1 full synthetic oil and K&N air and oil filters.

Also do changing to high end spark-plug wires make any difference? Thanks for any help you can give me...
 
Originally posted by: Sawyer
jeepsunmlimited.com or jeepforums.com have very informative message boards
Click to expand...

Yes, thanks. I'm a member at jeepforums.com, I'm going to post over there too.
 
You will not notice much of any difference with most plugs.

I would not get the Bosch4 as it covers up a lot of the spark area, more so then the cheapest copper plugs. If you must run them, then get the Bosch2.

But Plat plugs actually offer less performance then copper plugs. The reason for Plat (and other rare metals) is life span. I run Champion Truck plugs in my truck. Its basicly a regular copper plug with a bigger head.


So if they are easy to get to and you like working on your car then get some copper plugs and change every 30k. If its hard to get to and/or you don;t want to mess with it then get some decent Plat. plugs.
 
Whatever the manufacturer recommends. I have tried all kinds of after market plugs, and it seems the factory ones are always the best.
 
The spark that jumps the gap in a cheap spark plug is the same spark that jumps the gap in an expensive spark plug. A spark is a spark.

As far as spark plug wires go, electrons don't care how much the wire that carries them costs. They'll travel on the cheap wire as well as on the expensive wire.

Isn't the spark plug change interval universally standard at 100,000 miles now? Do your spark plugs really need to be changed?
 
just change them anyways...
as said, i doubt it matters for regular cars. but fouled/worn down or whatever plugs suck worse than even the cheapest new ones.
 
Get copper plugs from NGK or Champion. There's no reason to pay more for anything else.



edit: I can't remember the last time I checked or changed the plugs in my 4.0 Jeep. Damn engine cannot be bothered by anything.
 
Originally posted by: angry hampster
Get copper plugs from NGK or Champion. There's no reason to pay more for anything else.



edit: I can't remember the last time I checked or changed the plugs in my 4.0 Jeep. Damn engine cannot be bothered by anything.
Click to expand...

True, during a discussion on the best oil for the 4.0 somebody commented that it would run on water and corn starch. It's an older design and it's pretty hard to screw up.
 
New ones.

And, assuming none of your plugs are fouled or wires arcing, you aren't going to notice any difference no matter which plugs you choose.
 
Autolites, or NGK's

There is not a plug made that makes a "hotter spark". All a plug is, is a path for electricity from the coil to flow. The plug gap determines the voltage, the coil's windings determine the amperage.

All the plug does is keep the compression in and allow the electricity to jump that gap and start the fire. All the "platinum/irridium/flux capacitor" crap they're made of does is make the gap increase slower...so the plugs last longer.

But Autolites and NGK's are ones that I've had people who test these things constantly say that tend to be "right" out of the box, and fail less than other brands.

As far as the plug wires go, if the resistance is the same, it doesn't matter what you pay...initially. But "better" wires DO last longer than the cheap ones. Cheap wires are notorious for not lasting.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top