Narrative:

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.

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Original NASA ASRS Text

Title: 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.

Narrative: 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.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.