Proper Spark Plug Gap for N55
What is the correct factory gap for N55 engine? Is it 0.7mm?
I'm a bit confused because I just ordered the ZR5TPP33S Bosch branded plugs from ECS and on the box its labeled 0.8mm
I measured them on a cheap spark plug gauge and they are indeed ~0.8mm
I then took my original plugs out of my engine and measured them at ~0.85mm!
The car only has 26K miles and my wife drives it most of the time, so can someone weigh in on what I should set the gap to?