Quote:
Originally Posted by xsport
From the smell and texture of the fluid on the tissue or whatever you clean up with, you should be able to tell if its oil or whatever. Oil probably, after a good length of time not drying out. If the plugs were not loose then doubtful its from the cylinder. More likely caused by a spill , from topping up the oil / filling from the side of the car ,not the front. In fact from anywhere ..  |
I'm now of the opinion it is from the cylinders over many years since the plugs were changed, being platinum point Bosch ones I assume they are not the originals. Several other showed similar oil staining around the base of the plugs. I guess they were inadequately tightened.
Now replaced with standard Denso type from DMGRS, hand tightened by feel, theads coated with a smidgen of copperslip. I understand there is a difference of opinion over the use of a copper grease here; I'd welcome the debate though it's too late for this engine!