Thread: Spark plugs
View Single Post
Old 02-03-2009, 12:10 AM   #1 (permalink)
The Atomic Ass
Master EcoModder
 
The Atomic Ass's Avatar
 
Join Date: Oct 2008
Location: Mason, OH
Posts: 535

Priinocchio - '17 Toyota Prius Two Eco
90 day: 65.2 mpg (US)
Thanks: 11
Thanked 20 Times in 17 Posts
Spark plugs

What does it indicate, if when you pull a plug, the threads are oily, and some oily sludge exists slightly outside of the compression ring, in a situation where the plug boot fully seals around the plug hole? (The plug hole was clean otherwise, so this didn't seep in from outside).

__________________
  Reply With Quote