What spark plugs to buy?

[texasv8]

I have an 08 Tahoe LT with 55K looking to replace the spark plugs.I am guessing AC Delco spark plugs is what it comes from factory.Not looking for performance, just looking to save gas.Also do wires need to be replaced?

 

[THE-HOE]

in most cases your going to have alot of diffrent oppinions. When i was stock i would just run the exact plugs/ wires that it came with stock because i figured the company knows best. You should be fine with whatever is the proper application for your vehicle. also, i highly doubt you need new wires by now, but check them out for sure! i change plugs once a year, but only wires if there is a problem. cheers

 

[AZSCTACO]

Why are you changing the plugs so early? There good till 100k....save your money.

 

[texasv8]

Why are you changing the plugs so early? There good till 100k....save your money.

I am just trying to do maintenance , to see if i get better gas mileage.

 

[AZSCTACO]

Factory plugs are iridium and don't need to be changed till 100k.....save your $$ cause it's going to cost you 70-80 bucks and I don't think it's necessary at 55k miles.

 

[fiatdale]

I would just check and re-gap rather than replace. They shouldnt be too worn at 55k