dealer only spark plugs??

[Hajo]

I have 16 plugs in my car.  I'l use OEM only.

[Big Rat]

Should be able to get a set of factory ACs at most autoparts stores for around 5-6 bucks each.  With my mark up I sell them for 10 bucks each, and should only be an hour to install.

 
BigRat 

[Dragon]

Real trucks don't have spark plugs. 

 

[Shuffler]

The thing about the platinum plugs is you change them the first time just after 100,000 miles and the next time after 200,000.

[Captain Virgil Hilts]

The thing about the platinum plugs is you change them the first time just after 100,000 miles and the next time after 200,000.

And they're almost always 30K miles past worn out when you do. They're fun to get out of the head, too. It's a really stupid idea, no matter what anyone tells you, ignition system components do not have anything near peak efficiency and quality past 50K miles.

If you're one of those unlucky souls, it'll cost you about as much to get a seized plug out of a cylinder head at 100K miles as it would have cost to have the vehicle tuned up 3-4 times.

[Masherbrum]

And they're almost always 30K miles past worn out when you do. They're fun to get out of the head, too. It's a really stupid idea, no matter what anyone tells you, ignition system components do not have anything near peak efficiency and quality past 50K miles.

If you're one of those unlucky souls, it'll cost you about as much to get a seized plug out of a cylinder head at 100K miles as it would have cost to have the vehicle tuned up 3-4 times.

I have to completely agree with this.   Platinum plugs are most definitely a gimmick.

[Shuffler]

If your familiar with your parts supplier they'll ask you if the vehicle is missing when you go to get plugs if you have less than 100k. lol


I have seen where the price of the plugs has dropped dramatically.

[morfiend]

And they're almost always 30K miles past worn out when you do. They're fun to get out of the head, too. It's a really stupid idea, no matter what anyone tells you, ignition system components do not have anything near peak efficiency and quality past 50K miles.

If you're one of those unlucky souls, it'll cost you about as much to get a seized plug out of a cylinder head at 100K miles as it would have cost to have the vehicle tuned up 3-4 times.

  This ^^^

  Aluminum heads and steel plugs dont mix well and once seized they tend to remove the threads with the plug.Oh it's a simple enough fix but like capt.Virgil says the cost is likely way more than changing out the plugs 3 or 4 times.

  Funny how the plugs last the same length as warranty...   Thats so the manufactures dont have to spring for the head removal and helicoil and associated machining.

  I had the plugs done on my honda at 40k,werent due for another 60k but the service manager and I are friends so I said just do it. Later he said to me,good thing we changed them,1 was almost seized and had I have waited I would have been facing a nice bill to repair it. The service manager told the tech to be sure to use plenty of antiseize but even that wont help much after 4 or 5 years! Oh and I plan to replace them again at about 80k!!!



   

[Wolfala]

Hard to believe the griping over $6 plugs. One plug on a plane is $25 for a dirt simple massive electrode.

http://www.skygeek.com/urhm38e.html

Finewires - try $90 per plug times 12.

I pulled a Champion Finewire from a TN IO-550 the other day in Williamsport PA with a cracked insulator when it dropped out on 1 mag. The guy didn't have a spare, luckily I did and had my tools.
For you CFI wannabes out there, learn yr engines and how to diagnose and fix problems when it's a Sunday away from home.

http://www.youtube.com/watch?v=kAcItSvtTrs&feature=youtube_gdata_player

 

[Shuffler]

Hard to believe the griping over $6 plugs. One plug on a plane is $25 for a dirt simple massive electrode.

http://www.skygeek.com/urhm38e.html

Finewires - try $90 per plug times 12.

I pulled a Champion Finewire from a TN IO-550 the other day in Williamsport PA with a cracked insulator when it dropped out on 1 mag. The guy didn't have a spare, luckily I did and had my tools.
For you CFI wannabes out there, learn yr engines and how to diagnose and fix problems when it's a Sunday away from home.

 (Image removed from quote.)

You're not condoning being prepared again are you? 

[homersipes]

bought plugs total 76.56 only plugs any partstore could get were ngk's and had to be ordered, well I believe in AC in GM.  on another note to you guys who fly.  What happens if your are 2000 miles from home and you plane craps out?  obviously a mechanic has to fix it, car mechanics dont always get to you right off, I am assuming aircraft mechanics cant get to everyone right off either or am I wrong?  just something I thought of the other day.

[CAP1]

I haven't seen CAP on the forums all day.... check the WWI arena. 

 was pretty busy at the shop today.

 you should be easily able to purchase those plugs at any napa store.

[CAP1]

so I was going to change the plugs in my 2003 gmc 2500HD 6.0 pulled the plug out to get number and it has 2 numbers on it:ACDelco 12567759 and NGK pztr5a 15.  I have never seen this before but whatever, so I go to the parts store and they couldnt cross reference it over and their computer says its 2 different plugs.  Another parts store couldnt pull up either number and a napa couldnt cross it either.  So when I got home I called the dealer and he gave me: ACDelco 41805.  Under the hood lists the plugs to be gapped at .060 but the dealer told me to gap at .040.  I dont quite understand this, has anyone else had this experience?  and they are 10 dollars a whack, I changed all 6 in my blazer for 20.

 call them again. the napa store. give them the application, not the part number. i know they have them. they'll have OE equipment, probably in delco, ngk, or autolight.

 napa's website lists the gap at .040

[CAP1]

I made a good portion of my money diagnosing cars that had a funny miss at idle.

I fixed them by putting OEM spark plugs in.

The service interval is 100,000 miles or more so that's where your savings occurs.

The reason for gapping 040 instead of 060 was instituted to ensure the vehicles made the epa mileage mandate concerning tune-up.

 i've gotta agree with icepac on this one.

 crap.........maybe the world really IS gonna end in a few months........

[CAP1]

Look up the AC Delco website, they have an online catalog, you find your vehicle and then look up the parts for it.

You want an AC Delco 41-805, or if you want to use the AC Delco RpaidFire, you want a 6.

The 41-805 is $5.99 at Autozone, you'll probably have to order them for home delivery online. They have a $1.50 per plug rebate.

They have the RapidFire 6 at most stores for $4.99, no rebate.

The 41-805 is a double platinum, the 6 is not. My Firebird actually ran better with the RapidFire plugs than it did with the double platinum plugs, and they last about as long.

I prefer AC Delco plugs, or Champions, I will not use all the Bosch gimmick plugs, and rarely use NGK. I was a flat rate line tech in one of the best shops in the southeast for years. We used the factory plugs in 99% of the vehicles we worked on. We solved more problems taking the trick gimmick plugs out and throwing them away than you can count.

 i had 2 bad experiences with bosch plugs in the old 80's ford 5 liters. one time in a gm 5 liter. i go out of my way to not install bosch in anything i work on.