Also, on what basis do you have to say that Bosch "runs circles around" AC Delco? And the above statement is completely contradictory... Thats like saying why buy something better for a marginal cost difference if you can have something mediocre instead... Oh and with your mods... I'd say you are FAR from stock...[sm=rolleyes.gif][sm=smiley21.gif] (Please don't miss the sarcasm)

If the Bosch +4's (which I KNOW would not have lasted 10,000 miles in my brothers Jeep) claim they run for 60,000 miles and the AC Delco Double Platinums that claim they are good for 100,000 miles for the same price as the GIMICKY +4's, then simple logic says the Delco's are a better choice. I did not have to replace the STOCK AC Delco's in my Bravada. In fact, I still have them in the boxs that the new plugs came in incase something happens and I need them in a pinch. The plugs I replaced were 5+ years old and had over 75,000 miles on them and still looked very good. When I do a tune up, I don't go half way. I purchase everything ahead of time and if components are still good, I keep them as replacements.

 

And the winner is.......SWARTLKK...by a landslide...the challenger didn't have a chance with this one folks. Sad, so sad. You would think that people would do their homework before starting up a thread like this, knowing they will get their hats handed to them.

 

*gets out his Mike Tyson voice emulator*
Well, you know, my opponent fought a good fight. I never even thought he was going to last past the first round. I decided to just drop him quick in the second. In the end, I pounded him home with a stiff shot of TRUTH. I bit his ear off because... Hey... That's what I do...
*puts away the Mike Tyson voice emulator*

LOL. J/K

For those of you that don't know what Mike Tyson's voice sounds like, it was VERY high pitched, with a kind of lisp, and he slurred alot of his words together like any self respecting person who has taken too many uppercuts and jabs to the knoggen (sp?).

 

Just becuase your plugs look good does not mean they are still good. Also what you read is different from actual experience. Most magazine reviews are based on how good they get paid buy that company being reviewed. I speak aout of personal experience and not out of what magazines say or other people say. I own the vehicles I talk about and drive them everyday. But get me wrong though you do Know your stuff. I did not know Delco o2 plugs are more cash. I replaced the two sensors before the cat.

 

God, give up. I have seen many MANY tests on pretty much all of the supposed mileage improvers. They have all been proved to do NOTHING or actually decrease your mileage.

The ONLY FREAKIN' thing that I quoted from a magazine was about your precious Tornado! Stop trying to falsify my statements as a last ditch effort to make yourself "LOOK" like you know what you're talking about.

SOME SIMPLE QUESTIONS I WOULD LIKE ANSWERED:
1. How long have you been working on around automobiles?
2. How many O2 sensors have you replaced in your attempts? (asked twice earlier with NO response)
3. How many years have you had your precious Blazer that you talk so much crap about?
4. What other relevant experience do you have on the automotive/mechanic subject?

Now PUT UP OR SHUT UP!

 

Ok, I'll give you a chance to redeam yourself, only alittle bit though.

What actually makes a spark plug bad?

Tell me the correct answer and I'll admit that you know one thing.

 

the number one killer of plugs is carbon build up.

 

Good answer. Its a toss up between worn electrodes and carbon fouling in a good running engine. But neither of which are detrimental FAILURES. With newer platinum plugs in the right application, the #1 cause of misfires at the plug is carbon, but still it isn't a bad plug. Alittle cleaning will go a long ways, but you have to make sure that you don't score the electrode, ie clean it so there are lines in the metal as this will cause the spark to scatter when it needs to be a nice tight bolt.

Many companies offer mini sandblasters that will clean a spark plug to like new. The main reason why they aren't a staple in everyone's garage is cause they cost more than a couple sets of plugs in many applications. Why buy a machine that'll clean your plugs once a year (or every other year) for $50 when you can get 2 sets (or 5 sets in the case of my Bonneville) for that?...

I used to routinely clean the plugs on my Chevelle (when in highschool). It was part of my twice a month maintenance on the car. I'd pull them out, clean up the electrodes with a fine, thin polishing stone (diamond impregnated steel polishing file). Now, with the price of plugs, this isn't practical anymore. Plus with the lackadaisical way people treat their cars, they typically don't give two craps. Heck, people now-a-days (old-timer word right there) treat their cars like toilet paper. Many, at the first sign of a problem, trade it in on a newer model.

Now with my Bonneville, it is part of my 3-4 month maintenance to pull the plugs and atleast check them. The last 3 times I have done it, they looked great. Alittle rounding on the edge, but for a copper plug, that's fine so long as the gap is correct. The next time I'll probably do alittle filing of the electrode to square it back off.

While we're on the subject of plugs, I am kind of interested in the iridium plugs and how they turn out. What I have read has shown some promise. I am highly skeptical as to any gains claimed by each manufacturer of them, but the fine wire electrode should produce a much more consistent spark which is a good thing.

 

I'm still waiting for an answer to the following questions...

 

I think i hear the Rocky song [sm=icon_beat.gif]