Chevy Impala Spark Plugs
Chevy Impala lt
Engine Size: 3.5
Issue / Question:
I’m considering spark plugs such as Pulstar or bosch 4 electrode/2 electrode. Will these impact the computer info given to the engine beneficially/negatively? I’m currently getting 19/29hwy mileage. I’ve gotten up to 30.5mpg with my 05 Impala 3.5. My 06 has 49K miles on it.
We have installed Pulstars in 3 different vehicles and the customers had us remove them and install the OEM plugs, seems every one had some kind of a complaint.