Reply To: Compression figure

Thanks for the reply.  The engine was warm as had not long finished about a 40 minute trip. You are most probably correct in the soot on the plugs as I do not think it gets many decent runs and lots of little 5 minute warm ups are a recipe for such sooting. Not having ever had a vehicle with an advance/retard

I was unsure as to if possibly contributing to it.

Thanks

• This reply was modified 5 years ago by Dave Thornley.