spark plug brands
Senior Member
Joined: May 2005
Posts: 1,461
Likes: 1
From: Colorado
Motorcraft in Ford products
AC Delco in GM products
Champion in Mopar
NGK in Japanese Imports
Bosche in European Stuff
That should do it.
Use what is recommended by owners manual and you will have no problems.
It's kinda wierd how what came in it works best.
AC Delco in GM products
Champion in Mopar
NGK in Japanese Imports
Bosche in European Stuff
That should do it.
Use what is recommended by owners manual and you will have no problems.
It's kinda wierd how what came in it works best.
Senior Member
Joined: Sep 2003
Posts: 1,104
Likes: 0
From: WY
Having tried just about every make/type of plug over the years in my trucks, I really haven't found any one brand that really stood out as being superior to the others. No matter what you buy, you're bound to get a bad plug now and again. In my case, I've had horrible luck with Motorcraft plugs failing prematurely. And, the plugs everyone hates (i.e. Bosch Platinum and Champion Truck Plugs) have never failed me.
In my 5.4L's, I lean towards Motorcraft and Champion. In my 4.6L trucks, I use nothing but the $2 Bosch Platinum plug. Pretty much any suitable platinum plug will serve you fine.
In my 5.4L's, I lean towards Motorcraft and Champion. In my 4.6L trucks, I use nothing but the $2 Bosch Platinum plug. Pretty much any suitable platinum plug will serve you fine.
Senior Member
Joined: Jul 2003
Posts: 174
Likes: 0
From: So Cal
I just read this because I'm getting ready to do mine. A mechanic friend of mine said to just use Autolites, so that's what I'm going with.
REPLACEMENT TIPS
When spark plugs are replaced, you might want to upgrade to a premium long-life platinum or gold-palladium plug. These plugs cost a little more initially, but can actually save you money in the long run because they don't have to be replaced as often. Many of these plugs can go 60,000 to 100,000 miles. Such plugs would be a good choice for any vehicle where plug access is a problem. Another option is upgrading to a "performance" spark plug. These plugs typically have unique electrode configurations that increase spark exposure to the air/fuel mixture and have multiple edges to reduce the chance of misfire. Performance plugs are usually more expensive than standard or even long-life plugs, but may be a good alternative if you want the ultimate in ignition performance.
There are also spark plugs today that are specially designed for truck engines. Such plugs have increased fouling resistance and oversized electrodes for longer service life.
REPLACEMENT TIPS
When spark plugs are replaced, you might want to upgrade to a premium long-life platinum or gold-palladium plug. These plugs cost a little more initially, but can actually save you money in the long run because they don't have to be replaced as often. Many of these plugs can go 60,000 to 100,000 miles. Such plugs would be a good choice for any vehicle where plug access is a problem. Another option is upgrading to a "performance" spark plug. These plugs typically have unique electrode configurations that increase spark exposure to the air/fuel mixture and have multiple edges to reduce the chance of misfire. Performance plugs are usually more expensive than standard or even long-life plugs, but may be a good alternative if you want the ultimate in ignition performance.
There are also spark plugs today that are specially designed for truck engines. Such plugs have increased fouling resistance and oversized electrodes for longer service life.
Senior Member
Joined: Feb 2004
Posts: 10,390
Likes: 10
Hi. If you can afford 'em, go with Denso Iridiums ( IT-16 heat range for most non-blown applications).
Apart from Troyer recommending them ( which in itself should be enough), they are able to fire reliably on far less voltage, and as we all know, the ignition systems in these trucks needs all the help it can get. They really are a high quality plug ( for that price - $15/per at AutoZone- they better be ;-))
Dunno if I would run *any* plug for 130,000 miles. I know they are a PITA to swap out, but it's prudent maintenance to swap 'em sooner - bad plugs have been known to fry coils.
Mike recommends frequent plug, fuel filter, O2 sensor, etc replacements to eliminate potential issues - his custom tunes really require everything to be in peak form to work best.
Don't forget new boots and dielectric grease, and most importantly, torque them properly. Denso's web site has the proper procedure.
Cheers
Vic
Apart from Troyer recommending them ( which in itself should be enough), they are able to fire reliably on far less voltage, and as we all know, the ignition systems in these trucks needs all the help it can get. They really are a high quality plug ( for that price - $15/per at AutoZone- they better be ;-))
Dunno if I would run *any* plug for 130,000 miles. I know they are a PITA to swap out, but it's prudent maintenance to swap 'em sooner - bad plugs have been known to fry coils.
Mike recommends frequent plug, fuel filter, O2 sensor, etc replacements to eliminate potential issues - his custom tunes really require everything to be in peak form to work best.
Don't forget new boots and dielectric grease, and most importantly, torque them properly. Denso's web site has the proper procedure.
Cheers
Vic
Last edited by MGDfan; Jun 20, 2005 at 08:02 AM.