Mustang (P51)
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 70; Flight Crew Total 5000; Flight Crew Type 100
Aircraft Equipment Problem Critical; Ground Event / Encounter Other / Unknown; Ground Excursion Runway
Flight Crew Landed in Emergency Condition; General Declared Emergency
Aircraft
Aircraft developed a major oil leak [that] covered the windshield; [causing] no forward visibility. [I] declared an emergency with the Tower; landed; and departed the runway in the grass to the left of the runway. [There was] no damage to the plane or airport or pilot. [I] talked to the FAA FSDO who advised to remove the plane from the grass and give him a call as to what caused the oil leak.
After observing a significant oil leak; the pilot of a P51 landed in an emergency condition and exited the runway surface. There was no reported damage or injury.