I am glad this thread idea was started again.
I am totally with ForcedInduction on this.
The idea that they can't get rid of is based on a gasoline engine operation where the fuel vapors and air are taken in during the intake stroke and are in the bore on the compression stroke...
In our Diesel engines the fuel is not expressed through those little holes until the top of the stroke..and it is a tiny amount of fuel.... this would then have to shoot past two compression rings in order to be ' swept' down the wall by the oil rings..
NO WAY.