General Off Topic
Calling all mechanics!
I’ve got a 2012 Mazda 3i, Vin 7, 2.0L Skyactiv engine, almost 100k miles on it.
About 12,000 miles ago I had a tune up done, mostly involves just the plugs since it’s a coil on plug system because it was running a bit rough and getting carp for mileage. One plug was...