I seem to recall an employee of the sparkplug manufacturer on here, was it Honeywell, that said the Autolite and the Motorcraft are very close but are not made to the same specs.

 

My recollection is different. The honeywell rep claimed they are made on the same line the only difference was the autolite label. At least the one I remember went that way..

 

You may be correct. I'm lucky if I remember that there was a discussion. I bet it was one or the other!

 

Brew personally used Autolites in his truck and they burned right up. Replaced them with Motorcrafts and they worked fine. Care to explain that?

 

Are you asking me? I dont have an explanation for the honeywell guys defense of autolites if thats what your asking. Thats just what the guy said. I also recall he got railed for it..
I bought autolites for my truck when I first got it before I found this board I wouldnt run them because I trust the boards collective experience. I ran them for about 24k and had no issues. I have denso iridium now. They are working great to.
I think from what I've seen the autolites have there problem in 2v non PI heads the most. I havent seen anyone complain about them otherwise. I have them in my mach I no issues there either. Autolite used to be Fords replacement part name. Early fords had autolite radios batterys tuneup parts from the factory.
Not arguing the fact that members of the board have had issues with autolite plugs.

 

It's the Autolite AP103's and 104's that were suppose to be the same as Motorcrafts in the past. Their not, - far from it. I tested them and recorded the data on this site in this forum. Just a simple continuity test, but that alone showed a large difference between the Motorcraft plug and Autolite. Plus I tried running them and two heated up and misfired within 40 miles.

Not only that, I've wrote Honeywell in the past about this and got , - quote: We manufacture the Motorcraft spark plug for Ford applications. - Making it seem as tho it was my fault for purchasing the wrong plugs for my vehicle, - even tho their 103's and 104's are cross referenced with Motorcrafts lol. Yea, I did get a refund tho, after about a year.

They didn't answer any questions in my letter as to why this is. Neither did a few people who visited this site that work their. Some Autolites might be the same, but theses are not.

The comparisons in resistance included NGK, Champion, Motorcraft and Autolite. The only plug that matched the Motorcraft was the NGK.

Here are the two plugs that misfired. They couldn't handle the heat and turned colors -



They look the same don't they ? Their not... -Anyway, - we should get back on topic. So who thru a wrench in the spokes anyway lol.

 

I was primarily asking Truckin, not you, jet.

 

touchy subject, I was merely making an observation about using cheap off brand cops, not which spark plugs you should use. Honestly, I have used Autolites in 4 different modulars and have never had a problem. In the past I stayed away from Motorcraft, because the quality just didnt seem to be there. I have pulled out plugs at 60,000 and they gap was so far out, I dont see how the engine could have run very well to 100,000. One thing I always understood was the reason Ford wanted you to use Motorcraft parts, was because they sold Motorcraft parts. Every manufacturer wants you to use their brand. I am not saying Motorcraft is junk, I believe they make quality parts, and certain off brands should be avoided. The only basis I have for my opinion is my experience. Some people on these boards act like if you dont buy motorcraft only, god will kill a kitten. I have no explanations for why someone else had a problem with certain plugs in their engine. there are far too many factors to take into account. Sometimes crap just happens, no need to take it personally and get offended. These boards are about sharing opinions and insight, not to try to prove people wrong.

 

Not trying to prove you wrong, but can you offer a possible explanation why Brew toasted that set of Autolites? He's not the only one, by the way.

 

I dont know why I need to. Like I said, crap happens. For every million parts made, there are bound to be some defective ones. A few people have had problems with Autolites, millions dont. It sounds like you dont like the fact I am not following the herd. Like I said I am not here to argue, I made an observation that has taken this off topic. If I am to follow the logic, I should never buy another Ford, because some people have had problems with them.

Hope everyone had a great Thanksgiving.

 

Crap happens all the time, - sometimes it filters out here. How do you know millions don't? It's more along the lines of chance, the some do, some don't spiel. You got lucky, maybe - I'm having a real hard time giving you the benefit of doubt. Frankly, I don't believe the majority of it.

Doesn't matter, I know. We help people here, part of that is steering them away from a possible problem. And with this post here, lol -

Your creditability is now a joke. Sorry, but your in the wrong place to start spewing about something you don't know enough about. It's easy to assume this when an individual fills in the blanks with what's comfortable and convenient, -for whoever. When it's incorrect, you just flamed yourself.

Your not to bright, but you really don't have to be. I mean know one is equal right? This pretend/fantasy land your in is... -It is what it is, I guess. That's my opinion anyway.

Go get yourself a beer now, - it shouldn't take to long to kill what's left.

 

wow, some one doesnt agree with you and they are obviously the one who is wrong. If Honeywell was spewing out millions of bad parts, doesn't seem like they would stay in business long. Because I have used a certain plug for years with no problems means I have no credibility? This forum is supposed to be about helping people, that I agree on, attacking people because they dont agree with you is not what is about. I have not said anybody was wrong, nor have I tried to make anyone look stupid. You dont like what I have to say, you have to take it to a personal level.

 

Ok guys, lets let it lie there. Everyone has stated their opinion and as was noted, everyone has a right to their opinion.

 

Your all mixed up lol. Sorry dude, I don't know you. "Personal" has absolutely nothing to do with my post... (?) Nah, I think you need a tissue?

Yes Honeywell cross referenced two plugs for my 5.4L that didn't meet or beet Ford spec. I have had problems, so have countless others. You bad mouth Motorcraft ? Motorcraft plugs and other maintenance parts have always been the fail safe for 10th generation modular's. More so for the V8's, since allot of them are very picky about plugs, -specifically heat range. The Autolite lack the ability to transfer heat properly (heat range). As said, some get away with it , some don't.

I was blind sided by it, way back when and since have whiteness others go thru similar/same problem with Autolite Spark Plugs (103'&104's). I've have corresponded with Chuck Chaison @ Honeywell about the issue. Mr. Chaison was cool and seemed to have an interest with finding a solution,- thanked me, blah blah blah. Then I get a letter from Vic ? -I think his last name is Shuster (?) , - anyway, his letter was an attempt to make me feel like a dumbass, maybe (?) - Letter stating, quote: "We manufacture Motorcraft Spark Plugs for Ford applications." Well, I don't think it worked, -because I felt just fine.

There's allot more to this than I care to discuss; right now anyway.

Regardless, - you bad mouthed Motorcraft plugs when they ARE the fail-safe and always have been for those who are just interested in maintaining their original equipment under the hood. I've seen these plugs look pretty close to new with over 100,000 miles on them. That's running original equipment and getting to crazy on the mods.

I've never heard ANYONE bad mouth Motorcarft plugs in for the 10th generation modular 2 valve.

Don't blame me if you feel stupid or whatever your going on about, - I'm standing by the engineers and their spec. It's proven, so why roll the dice when you don't have to ? I will say that I would never direct a user to use a Spark Plug that has failed for others in the past. What's the point ? Tell me.

 

Here's one way of looking at the Global or no-name brand parts vs Motorcraft service parts.

Motorcraft service parts have to be manufactured to and meet drawing specification requirements 1, 2, 3, 4..... up to 20. Where no-name brand parts need to be manufactured to and meet drawing specification requirements 1, 2, 3, 4... up to 6.

Typically OE service parts are manufactured and tested to a higher level of requirements then the no-name brand replacement parts. Yes, these parts are often manufactured by the same parts manufacturer and frequently they are manufactured on the same assembly line or assembly area. But they key difference is you're paying more for the added in-process and final inspection as well as a higher level of product/process validation testing, when you buy those more expensive OE service parts.

I can't say for sure that's the deal with Motorcraft COPs vs Global no-name brand COPs, but I am offering the above description based spending many years as a manufacturing engineer for a number of different automotive parts manufacturer's. This scenario holds true in the differences between OEM and OE Service parts.