Page 472 of 1808

. If the oil level is below
,
remove the oil filler cap and pour
recommended oil through the open- ing.
Do not overfill
.
6. Recheck oil level with the dipstick.
NOTE:
. It is normal to add some oil between
oil maintenance intervals or during
the break-in period, depending on
the severity of operating conditions.
More engine oil is consumed by
frequent acceleration/deceleration
especially when the engine rpm is
high. If your rate of oil consumption
increases suddenly or without ex-
planation, NISSAN recommends that
you have your vehicle inspected by a
GT-R certified NISSAN dealer.
. When the vehicle is delivered, the
engine oil is set to 0.39 in (10 mm)
below the H mark for optimal high
performance driving. The engine oil
can be filled up to the H mark if
performance driving is not engaged.
NOTICE
.Mobil 1 (0W-40) (100% synthetic)
is the factory fill oil. The VR38
engine with its plasma-sprayed
bores was developed using this
oil. NISSAN cannot ensure proper
engine operation and durability if
other 0W-40 non-equivalent syn-
Do-it-yourself
8-9
ENGINE OIL
Page 473 of 1808
WARNING
.Prolonged and repeated contact
with used engine oil may cause
skin cancer.
. Try to avoid direct skin contact
with used oil. If skin contact is
made, wash thoroughly with soap
or hand cleaner as soon as pos- sible.
. Keep used engine oil out of reach
of children. NOTE:
When checking or replacement is re-
quired, it is recommended you contact
a GT-R certified NISSAN dealer for servi-
cing.
NOTICE
.
It is recommended that you use
only Genuine NISSAN Transmis-
sion Oil R35 Special or equivalent.
Do not mix with other fluids.
. Using transmission oil other than
Genuine NISSAN Transmission Oil
R35 Special or equivalent may
cause deterioration in driveability
and transmission durability, and
may damage the transmission.
See the 2021 NISSAN GT-R War-
ranty Information Booklet for de-
tails including applicable
exclusions.TRANSMISSION OIL
Page 478 of 1808
and LOWER LEVEL
lines.
If it is necessary to add fluid, add only
distilled water to bring the level to the
indicator in each filler opening. Do not
overfill.
.
2. Add distilled water up to the UPPER LEVEL
line.
If the side of the battery is not clear,
check the distilled water level by
looking directly above the cell; the
condition
indicates OK and the
conditionsneeds more to be added.
3. Tighten cell plugs
.
Vehicles operated in high temperatures
or under severe conditions require fre-
quent checks of the battery fluid level.
JUMP STARTINGIf jump starting is necessary, see the
following section. (
“Jump starting”
page 6-5)
If the engine does not start by jump
starting, the battery may have to be
replaced. It is recommended you contact
a GT-R certified NISSAN dealer.
Do-it-yourself
8-15
Page 485 of 1808
ENGINE COMPARTMENT
WARNING
Never use a fuse of a higher or lower
amperage rating than that specified
on the fuse box cover. This could
damage the electrical system or
electronic control units or cause a
fire.
If any electrical equipment does not
operate, check for an open fuse.
1. Be sure the ignition switch is pushed to the OFF or LOCK position and theFUSES
Page 486 of 1808

headlights are turned off.
2. Open the engine hood and remove the cover on the battery and the fuse/
fusible link holder.
3. Remove the fuse/fusible link holder cover.
4. Remove the fuse with the fuse puller that is located in the engine compart-
ment fuse box.
, replace it with a
new fuses
. Spare fuses are stored in
the passenger compartment fuse box.
6. If a new fuse also opens, have the electrical system checked and re-
paired. It is recommended you contact
a GT-R certified NISSAN dealer.
Fusible linksIf any electrical equipment does not
operate and fuses are in good condition,
check the fusible links. If any of these
fusible links are melted, replace only with
genuine NISSAN parts.
WARNING
Never use a fuse of a higher or lower
amperage rating than that specified
on the fuse box cover. This could
damage the electrical system or
electronic control units or cause a
fire.
If any electrical equipment does not
operate, check for an open fuse.
1. Be sure the ignition switch is pushed to the OFF or LOCK position and the
Do-it-yourself
8-23
Page 575 of 1808

system. Note that while some fuel pumps
label MMT content, not all do, so you may
have to consult your gasoline retailer for
more details.Aftermarket fuel additives
NOTICE
NISSAN does not recommend the use
of any aftermarket fuel additives
(Example: fuel injector cleaner, in-
take valve deposit removers, etc.)
which are sold commercially. Many
of these additives intended for gum,
varnish or deposit removal may con-
tain active solvent or similar ingre-
dients that can be harmful to the fuel
system and engine.Octane rating tipsUsing unleaded gasoline with an octane
rating lower than recommended above
can cause persistent, heavy spark
knock. (Spark knock is a metallic rap-
ping noise.) If severe, this can lead to
engine damage. If you detect a persis-
tent heavy spark knock even when
using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on levelroads, it is recommended you have a
GT-R certified NISSAN dealer correct the
condition. Failure to correct the condi-
tion is misuse of the vehicle, for which
NISSAN is not responsible.
Incorrect ignition timing will result in
knocking, after-run or overheating. This
in turn may cause excessive fuel con-
sumption or damage to the engine. If any
of the above symptoms are encountered,
it is recommended you have your vehicle
checked at a GT-R certified NISSAN dealer
or other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is
no cause for concern, because you get
the greatest fuel benefit when there is
light spark knock for a short time under
heavy engine load.
ENGINE OIL AND OIL FILTER RE-
COMMENDATION
Selecting the correct oilIt is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance.
(
“Capacities and recommended
fluids/lubricants” page 10-2)
Mobil 1 (0W-40) (100% synthetic) is the factory fill oil. The VR38 engine with its
plasma-sprayed bores was developed
using this oil. NISSAN cannot ensure
proper engine operation and durability if
other 0W-40 non-equivalent synthetic oil
is used. If Mobil 1 (0W-40) or equivalent is
not available, Mobil 1 (10W-40) (100%
synthetic) or equivalent may be used;
however, some performance loss may
be noticed.
NOTICE
Using an engine oil other than that
specified could adversely affect the
engine. See the 2021 NISSAN GT-R
Warranty Information Booklet for
details and exclusions.Oil additivesNISSAN does not recommend the use of
oil additives. The use of an oil additive is
not necessary when the proper oil type is
used and maintenance intervals are fol-
lowed.
Oil which may contain foreign matter or
has been previously used should not be
used.
Page 595 of 1808
Checking engine coolant level ..................... 8-8
Draining of coolant water ............................ 5-57
Engine coolant temperature gauge ........ 2-8
Coolant level and mixture ratio ................ GTR-15
Corrosion protection ................................................... 7-9
Cracks on brake pad ......................................... GTR-28
Cracks on the disc rotors .............................. GTR-28
Cruise control ................................................. 2-17, 5-35
Cruise control operations .................................... 5-37
Cruise control system warning ....................... 2-43
Cup holders ..................................................................... 2-63
Current fuel consumption ................................... 2-16
D
E
Page 620 of 1808
and LOWER LEVEL
lines.
If it is necessary to add fluid, add only
distilled water to bring the level to the
indicator in each filler opening. Do not
overfill.
.
2. Add distilled water up to the UPPER LEVEL
line.
If the side of the battery is not clear,
check the distilled water level by
looking directly above the cell; the
condition
indicates OK and the
conditionsneeds more to be added.
3. Tighten cell plugs
.
Vehicles operated in high temperatures
or under severe conditions require fre-
quent checks of the battery fluid level.
JUMP STARTINGIf jump starting is necessary, see the
following section. (
“Jump starting”
page 6-5)
If the engine does not start by jump
starting, the battery may have to be
replaced. It is recommended you contact
a GT-R certified NISSAN dealer.
Do-it-yourself
8-15