340 dart

15/40 shell synthetic rotella T6 diesel in my mild( 340) seems to like it and I have been monitoring my oil filter(attached magnet/cutting open) to look for signs of tappet /cam problems , 2yrs nothing

. (The 15W-40 Rotella T with Triple Protection oil has approximately 1200 ppm of zinc and 1100 ppm phosphorus at the time of manufacture.) per wikipedia/shell

it's on wally world shelves and a good price