In 1973 I built a boat, installing a NEW engine, a Cummins V-504M.
Set-up by Da Book.
1: Pull the dipstick out
2: Add (X) amount of oil
3: Wait 5 minutes, insert and pullout the dipstick
4: Mark the dipstick (low level)
5: Add 1 gallon of oil
6: Repeat steps 3 & 4 to mark high level.
In operation oil level checks were to be made 5 minutes after shutdown.
My present engine, a Caterpillar, the oil level is checked with the