new sparkplugs..necessary??Debate with self

[jtfrog]

I am going on 70,000 on my 2001 and I am going to change them because I dont like leaving the plugs in my aluminum heads. I plan on using good old a/c delcos.
P.S. you never gap a platinum plug

[Tom01Rodeo]

I just put new ACDelcos in my '02 5.3 w/53K. Noticed a definite improvement in throttle response. Seems to accelerate better but haven't noticed any better fuel mileage. I'm getting 17.8 highway with the A/C on.

BTW- the plugs were around $6 ea. at O'Reilly.

[jers99z]

well i do believe that im convinced to change out the plugs on my truck once again, I will try the delco's and get rid of the Bosch. And do ya'll suggest using the Iridium or Platinum. How much is the cost difference. And thanks for helping me to correct my deficiency.

[Slowprocess]

Originally Posted by draboo

I guess time will tell. If I need to get a set of the expensive AC`s, I will. If the Platinums dont work out,it ll be a reletively cheap lesson

SlowProcess: will those NGK TR55`s work in a 5.3L?

Absolutely!!! I think you will be very happy with them, and what's not to like about that price.

[Tom01Rodeo]

Originally Posted by jers99z

And do ya'll suggest using the Iridium or Platinum. How much is the cost difference.

I believe ACDelco only makes the Iridium for our trucks. Thats all they listed for the truck at O'Reilly, anyways.

[airjam18]

I just changed mine today and I used ngk TR55's....i also replaced my wires with some new ACDelco's as well....the old plugs and wires had 109k and still looked pretty good.....and I second the fact that Bosch sucks in chevy motors......use thir o2 sensors but never plugs or wires....

[tykrz]

here's an article relating to horsepower and mpg increase fixes for the TBI trucks. I posted it here because it makes reference to AC Delco spark plugs being superior to others as per the performance shops testing. Higher quality = higher price

http://chevytruckworld.tenmagazines....aid=1324&sid=1

[tykrz]

Originally Posted by Slowprocess

NGK TR55.....best plugs I've ever used and you can get a set for under $10. Don't let the price fool you. This is the plug to run. Right now I'm running the TR60s because they are a colder firing plug and I'm on the spray.

HOPEFULLY THEY ARE NOT BOGUS OR COUNTERFIET PARTS FROM ASIA

[Rollingbones]

Originally Posted by tykrz

here's an article relating to horsepower and mpg increase fixes for the TBI trucks. I posted it here because it makes reference to AC Delco spark plugs being superior to others as per the performance shops testing. Higher quality = higher price

Interseting article. The kicker was the advertisement for the "Supercharge your Chevy for $69" ad for the Turbonator...LOL Somewhere on that page has got to be a conflict of interest!!!

[NoRiceHere01]

ive used bosche plugs in probably 4 different vehicles now and havent had any trouble yet. i put em in my 76 that runs amazingly smooth for a 30 year old truck with original internals. ive had them in my 01 now for just about 10k miles i think. it also passed inspection. exactly what kinda bad things have u heard about them? not to say the NGKs arent better. i was always a little partial to them myself, especially for the price.

[sierra99]

i thought the same thing as the guys above and wanted to replace my plugs after 100,000 miles. I posted the same question and stopped myself from getting the bosch and i did get the ac delco irridiums. i thought that i was feeling a bad plug shake every now and then, so i did change them and after that i did not notice of feel any difference in performance or gas mileage, but i guess that they had to be replaced at some time. i guess that since i am on 114,000 miles and still never replaced my front brakes yet, Replacing the plugs was one thing that i could do....oh yeah 99 silverado 4X4 ext LT......
List of parts replaced:
1 ujoint, rear parking brake pads, 8 spark plugs, 4 tires to Michelin LTX.

not bad for 114,000 miles...

[silverado4.8]

Have any of you guys heard anything about those new E3 spark plugs, i saw an ad for them in hot rod magazine. Heres the site www.e3sparkplugs.com let me know what you guys think, because im thinking of trying a set.