Spark plugs

Asked by JeremiahL19 Feb 17, 2016 at 11:46 AM about the 2004 Pontiac Grand Prix

Question type: Maintenance & Repair

What spark plugs are best , platinum,iridium, or

3 Answers


Sometimes cars don't like the platinum plugs. How old is the car and what model? If it has a larger engine say like in a Jeep 6 or 8 cylinder then use the platinum. Smaller older cars do better with copper plugs. Have owned both so I just go with the engine size and the age. Just my 2 cents.

1 people found this helpful.

Double platinum plugs can last a 100k miles but not the single platinum plugs.

1 people found this helpful.

My 08 Go will only run irudium plugs any other plug platinum or whatever burns them up 2 days time

1 people found this helpful.

Your Answer:

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 19 nationwide Grand Prix listings starting at $3,900.

Postal Code:

CarGurus Experts

  • #1
  • #2
  • #3
    Dorian Hendricks
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Chevrolet Impala
12 Great Deals out of 322 listings starting at $3,995
Used Pontiac Grand Am
5 listings starting at $5,000
Used Pontiac GTO
3 listings
Used Chevrolet Monte Carlo
6 listings starting at $2,999
Used Ford Mustang
39 Great Deals out of 1,157 listings starting at $6,995
Used Pontiac G6
40 listings starting at $5,480
Used Buick Regal
5 Great Deals out of 77 listings starting at $3,500
Used Chevrolet Corvette
22 Great Deals out of 367 listings starting at $12,895
Used Buick LaCrosse
4 Great Deals out of 87 listings starting at $6,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.