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Joined: Sep 2004
Posts: 49
TRDxvvtl
Member
TRDxvvtl Apr 18, 1:57am - #444585 

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2001 Toyota Celica

Joined: Sep 2004
Posts: 49
San Gabriel,California
Spark plug question

how often are we suppose to change our spark plugs?
Joined: Jan 2005
Posts: 47
ChubbyCox
Member
ChubbyCox Apr 18, 2:38am - #444586 

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2000 Toyota Celica GT

Joined: Jan 2005
Posts: 47
Kentucky
when their bad

[Linked Image]
Joined: Feb 2005
Posts: 30
X_Factor
Member
X_Factor Apr 18, 2:55am - #444587 
2001 Black Toyota Celica
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2001 Toyota Celica

Joined: Feb 2005
Posts: 30
Indiana
Change em when you have the money or every 50k miles. Their expensive as hell especially from the dealership cheapest I've been able to find em has $14.95 each.

They say the plugs are good for 100k but, if your running a CAI or any aftermarket Intake it causes the motor to run lean. So I would keep an eye on em and when they get too white change em out.
Joined: Sep 2003
Posts: 3,982
Zero
Furi Kuri
Zero Apr 18, 3:32am - #444588 

Furi Kuri
2002 Toyota Celica GT

Joined: Sep 2003
Posts: 3,982
San Diego, CA
i changed my stock ones around 41K miles and they were still in great condition, but i changed them anyway.

[b] remember that the 7th gen celica uses iridium-type spark plugs. thumbsup

I've mastered the art of the After Image Technique.
Joined: Jun 2004
Posts: 1,870
Chelica815
Specialist
Chelica815 Apr 18, 3:37am - #444589 
2000 Silver Toyota Celica
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2000 Toyota Celica

Joined: Jun 2004
Posts: 1,870
San Francisco -The Bay
50K

Agressively Driven
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2000 Celica GT-S 6 Speed
Joined: Sep 2004
Posts: 191
shonen
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shonen Apr 18, 5:17pm - #444590 
2001 absolutely red Toyota Celica
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2001 Toyota Celica

Joined: Sep 2004
Posts: 191
North Carolina
The ngk iridiums are a bit cheaper then the denso iridiums, i think its like $12 vs the $15 for the denso. They are supposed to last 100K miles so you should just check them out every oil change just to make sure they are ok. i say anywhere between 10K-20k is good if you drive agrressively or 40k-50k if you drive conservatively, but its really just up to you if the plugs are still good. Since the cost so much its really not easy to change them every oil change like the copper plugs so if you got money changing them more frequently would be better if not you can hold out a little longer.
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