New spark plugs at 100k miles

Jimmy Olsen · #1 02-21-2008, 02:34 PM

Boy, the car run so much better. It's got its old performance zip back. I wish I had changed them at 80k miles because that is when the gas mileage started to go down..

sydtron · #2 03-10-2008, 04:03 PM

How many years did you run yours? I've got a low mileage Intrigue, but at 7 years old you wonder what can you can do to help out.

Jimmy Olsen · #3 03-11-2008, 10:59 AM

Quote:

Originally Posted by sydtron

How many years did you run yours? I've got a low mileage Intrigue, but at 7 years old you wonder what can you can do to help out.

My Intrigue was manufactured in March 1999 and the plugs I replaced were the original.

Headnsouth · #4 03-11-2008, 11:41 AM

The plugs you pulled out were probably platinums and are usually good for 100k.
7 yrs on the same plugs and albeit wires. Change em go with either OEMS or NGK. Stay away from Bosch plats.

Jimmy Olsen · #5 03-12-2008, 08:14 PM

Just wondering, but in vehicles where plugs are usually changed at 30k miles, how long do the platinums plugs usually last?

Headnsouth · #6 03-13-2008, 05:06 AM

The OEM plat plugs that came with my Pontiac were good for 100k miles.

twodogs53 · #7 04-21-2008, 05:20 PM

changed out plugs- Now it seems like it's running like they aren't all firing?

maxwedge · #8 04-21-2008, 07:11 PM

Welcome to AF. You have tagged on to someone else's thread, start a new one for help. Also list year, thanks.

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