- Joined
- Sep 5, 2021
- Messages
- 2,653
Dry sump after oil drain.There’s enough oil on the journals for low-speed cranking but that’s it.
Are we talking new engine(after assembly) or repair work? Supposedly, GM dry-cranks Corvette engines for a second or two before they fill them with oil, at the time before GIII base stocks, Mobil 1 was made with GIV PAO base stocks and was too “slick” to allow the rings to seat. Hence the dry crank before oil fill.