Spark plugs

Asked by 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
copper

3 Answers

263,885

Most newer cars use the Platinum plugs. Better is subjective. The difference between the three types are how long they wear and last. Copper being 30-60K, Platinum around 100K and Iridium longer. Of the course the costs reflects that.

1 of 1 people found this helpful.
80

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 of 1 people found this helpful.
85,925

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

1 of 1 people found this helpful.

Your Answer

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,670 nationwide Grand Prix listings starting at $1,750.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,470
  • #2
    Tom Demyan
    Reputation
    3,110
  • #3
    munron
    Reputation
    2,500
View All

Related Models For Sale

Used Chevrolet Impala
585 Great Deals out of 34,402 listings starting at $900
Used Pontiac Bonneville
490 listings starting at $1,799
Used Chevrolet Monte Carlo
10 Great Deals out of 1,253 listings starting at $999
Used Ford Mustang
587 Great Deals out of 38,990 listings starting at $1,895
Used Pontiac G6
41 Great Deals out of 3,864 listings starting at $1,200
Used Pontiac GTO
6 Great Deals out of 445 listings starting at $4,995
Used Pontiac Grand Am
1,073 listings starting at $1,500
Used Chevrolet Malibu
1,087 Great Deals out of 61,692 listings starting at $880
Used Chrysler 300
345 Great Deals out of 19,357 listings starting at $900
Used Jeep Grand Cherokee
1,057 Great Deals out of 71,979 listings starting at $1,195

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
11 Great Deals out of 445 listings starting at $1,750
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 367 listings starting at $2,295
2006 Pontiac Grand Prix For Sale
435 listings starting at $3,950
2005 Pontiac Grand Prix For Sale
363 listings starting at $4,488

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.