Engine serial number

MR20DE

QR25DE
The number is stamped on the engine as shown.
See also:
NISSAN vehicle immobilizer system
The NISSAN Vehicle Immobilizer System will not
allow the engine to start without the use of a
registered key.
If the engine fails to start using a registered key
(for example, when interference ...
Push starting
CAUTION:
- CVT models cannot be push-started or
tow-started. Attempting to do so may
cause transmission damage.
- Do not push start this vehicle. The
three-way catalyst may be damaged. ...
2011 Nissan Frontier review
Full-size trucks are a chore to drive in the city — we know; we've done it —
so we wanted to see how Nissan's midsize Frontier would handle an urban
environment, as well as a junkyard run to g ...
