- Jul 24, 2021
- Columbus OH
- V-Series Cadillac(s)?
- 2016 ATS-V A8, 2018 ATS-V M6, 2022 CT4-V Blackwing A10
All true. But after the first spark plug change, it's not that difficult. Our approach is to use the best performing spark plugs, and just plan on replacing them periodically as normal maintenance.Copper plugs will need to be changed much more frequently, the OEM iridium plugs will last much longer, but they may not be the best heat range for higher boost levels. The trick is to find one step colder iridum plugs, been looking myself, but not found anything yet.