Listen to Capt Phip on this one !! Not all diesels engines are the same! Ive had many different types, and ran many many others over my 50 + years of boating! everything from air start Atlas Imperials to single
cyl hand start stuff! and one thing Ive learned is proper maintenance
is whats important!! The 4-108 we had in our 42 ft colvin went 14000 hours before we decided to rebild it! It still ran but was starting to burn a little more oil
then it leaked!!LOL that was 15 years ago ! and the last I heard it was still running well! Oil
changes and good filters!! valve adjustments! and a GOOD Type of diesel
rated oil ! Ive never used any fancy new types of oil, so can't comment on them ! Ive stuck with DELO cus I could get it almost world wide. But one thing Ive always had was additional remote
oil filters!! and I change every 100 to 150 hours, or at least once a year! LOL Ive never owned a HIGH speed diesel
except in my pick up, and Ive always ran my engines at 1800, 1850 rpms (except fot the Atlas LOL) worked for me !!