Engine serial number

MR20DE

QR25DE
The number is stamped on the engine as shown.
See also:
Car phone and CB radio
When installing a car phone or a CB radio in
your vehicle, be sure to observe the following
cautions, otherwise the new equipment may
adversely affect the electronic control modules
and electr ...
V-6 Gas Mileage, Performance
One of the disappointing elements of the V-6 Frontier — and one that many
people in the market for a smaller truck will likely be concerned about — is its
gas mileage. With an automatic transm ...
Changing engine oil filter
QR25DE engine
A Oil filler cap
B Oil drain plug
C Oil filter
1. Park the vehicle on a level surface and apply
the parking brake.
2. Turn the engine off.
3. Place a large drain pan under th ...
