Just swapped out spark plugs on my 2015 for the first time at 90,000kms. Cylinder #1 had a trace amount of oil at the base of the spark plug threads. 2 & 3 were bone dry. However, cylinder 4 had a decent amount if oil all over it. The car hasn’t leaked oil at all in the 6 years I’ve owned it.
Is a bit of oil on the plug potentially normal for this engine, or a sign of impending catastrophic failure…I’m a bit worried.
Plug #1
Plug and cylinder 4:
Is a bit of oil on the plug potentially normal for this engine, or a sign of impending catastrophic failure…I’m a bit worried.
Plug #1
Plug and cylinder 4: