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

233,035

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 out of 1 people think this is helpful.
70

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 out of 1 people think this is helpful.
57,135

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

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Spark plugs 3 answers

    I have a 2004 pontiac grand prix GTP what is the factory recommendation on the kind I use .. and or your recommondation.. my gas mileage is terrible..

    2004 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

  • spark plug wires 1 answer

    i have a big problom i need to know what spark plug wire go to which spark plug for the numbers 1, 3,& 5. i pulled them all without thinking and now im in desperate need of some help.

    1999 Pontiac Grand Prix 4 Dr SE Sedan

    -

    Maintenance & Repair

  • Spark plug gap 1 answer

    I have a 1999 pontiac grand prix gtp, it has 1.9 roller rockers undersize 3.1 pulley ported and polished heads, ported and polished blower 3.5 inch downpipe with cat delete and the computer has a...

    1999 Pontiac Grand Prix 2 Dr GTP Supercharged Coupe

    -

    Maintenance & Repair

  • Spark plugs 1 answer

    2004 Pontiac Grand Prix

    -

    Maintenance & Repair

  • spark plugs 5 answers

    What brand, kind of spark plugs do you guys use? I have had very good luck with double platinum and the iradium plugs. The Gtp has 134,000 on it now , and still runs great with 26 mpg on the highway a...

    2000 Pontiac Grand Prix GTP

    -

    General

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,919 nationwide Grand Prix listings starting at $1,995.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,120
#2 Tom Demyan
Tom Demyan
Reputation 2,770
#3 munron
munron
Reputation 2,150
View All

Related Models For Sale

Used Chevrolet Impala
543 Great Deals out of 29,827 listings starting at $799
Used Pontiac Bonneville
540 listings starting at $3,699
Used Chevrolet Monte Carlo
17 Great Deals out of 1,388 listings starting at $1,995
Used Pontiac G6
56 Great Deals out of 4,184 listings starting at $699
Used Pontiac Grand Am
1,263 listings starting at $1,593
Used Pontiac GTO
3 Great Deals out of 452 listings starting at $5,995
Used Ford Mustang
396 Great Deals out of 47,365 listings starting at $1,999
Used Chevrolet Malibu
876 Great Deals out of 81,397 listings starting at $995
Used Chrysler 300
346 Great Deals out of 20,500 listings starting at $1,000
Used Honda Accord
790 Great Deals out of 88,192 listings starting at $1,150
Used Nissan Altima
878 Great Deals out of 80,282 listings starting at $1,800

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
13 Great Deals out of 436 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
413 listings starting at $2,999
2006 Pontiac Grand Prix For Sale
5 Great Deals out of 455 listings starting at $1,999
2005 Pontiac Grand Prix For Sale
3 Great Deals out of 378 listings starting at $3,000