On to the drivetrain- engine, transmission, chains and sprockets.
Everyone has an opinion about motor oil, of course

, but the DR does seem to like certain kinds of oil over others.
And the topic of sprockets and chains comes up often as well.
What works for you?
MAINTENANCE
-LUBRICATION
-IGNITION/SPARKPLUGS
-FILTERS
ENGINE UPGRADES
-OVERSIZE PISTONS
-CAMSHAFTS
DRIVELINE
-TRANSMISSION
-SWAPPING SPROCKETS
-520 VS 525
-CLEANING/LUBRICATION
-CHAIN TOOLS