Spark Plugs

[road1will]

Gotta question for you guys.

I just got my 05 Tahoe yesterday with 40k miles. I also have an 04 Suburban with 45k miles.

The suburban i bought brand new and have never changed the plugs. The tahoe i'm assuming is on its original plugs.

I'm generally a maintenance freak. I change all my cars oil every 2500 miles, trans and diff fluid every 10k, and coolant once a year. On my RX-8 I change the spark plugs and coils every 6-8k miles. I'm actually surprised i've let the sub go this long on its original plugs!


So, what plugs do you guys run in these trucks? More importantly, what gap? I know a lot of plugs come pre-gapped these days, but I always like to double check them.

 

[markdtn]

I run stock AC Delco plugs with stock gap. These plugs are platinum tipped, so you probably don't need to change them yet. I would think more like 80k.

 

[JPerkMr954]

So does anyone run any different spark plugs in there truck? any views on aftermarket brand plugs? Iridium tips or anything?

 

[Rollin Thunder]

Gotta question for you guys.

I just got my 05 Tahoe yesterday with 40k miles. I also have an 04 Suburban with 45k miles.

The suburban i bought brand new and have never changed the plugs. The tahoe i'm assuming is on its original plugs.

I'm generally a maintenance freak. I change all my cars oil every 2500 miles, trans and diff fluid every 10k, and coolant once a year. On my RX-8 I change the spark plugs and coils every 6-8k miles. I'm actually surprised i've let the sub go this long on its original plugs!


So, what plugs do you guys run in these trucks? More importantly, what gap? I know a lot of plugs come pre-gapped these days, but I always like to double check them.

i have the bosch plugs, changed them early on as i wanted the best. i dont plan to change them until 60k. about 25k away.

 

[JPerkMr954]

bosch platinum? whats with these iridium plugs?

 

[jayhawk25]

I use the bosch platinum plugs. just put them in about 2k ago but no problems so far.

 

[JPerkMr954]

so no reason to go any higher that platinum.... good to know....

 

[Rollin Thunder]

i have bosch super plus, but i just like having the best for my yukon, platinum should be fine.

 

[road1will]

i have bosch super plus, but i just like having the best for my yukon, platinum should be fine.

did you gap them RT?

 

[Rollin Thunder]

did you gap them RT?

i had someone put them in, im not sure what they did, sorry.:ktoe:

 

[ugachs24]

Is there an added benefit of replacing the spark plugs with better ones? I was going to have the plugs replaced and radiator flushed at 50k even though the manual says 100k, but probably would have put factory plugs in there.