ℓ (U.S. gal.)
Truck model
Item
FG20 – FG30
FD20 – FD30
Lubri-
cant to
be used
Ambient
temperature
when engine is
started
Grade of
viscosity
K21 V2403 C240
1. Hydraulic oil
tank
32
(8.5)
Hydrau-
lic oil
–25°C & above
(–13°F & above)
ISO VG32
–40°C & above
(–40°F & above)
ISO VG22
2. Brake
reservoir tank
0.2 (0.053)
Brake
fluid
FMVSS
DOT-3
Gear oil
–10°C & above
(14°F & above)
SAE 90
–25°C & above
(–13°F & above)
SAE 80W
3. Reduction
gear,
differential
7.5
(2.0)
–40°C & above
(–40°F & above)
SAE 75W
4. Transmission,
torque
converter
7.0
(1.8)
Engine
oil
–25°C & above
(–13°F & above)
SAE 10W
ATF
DEXRON
–40°C & above
(–40°F & above)
ATF DEXRON
5. Radiator
7.6
(2.0)
9.8
(2.6)
11.3
(2.9)
Soft
water,
LLC
Note 1.
6. Fuel tank 70 (18.5) Note 2.
7. Engine
crankcase
3.8
(1.0)
7.6
(2.0)
5.4
(1.4)
Engine
oil
0°C & above
(32°F & above)
SAE 30
–25°C to 0°C
(–13°F to 32°F)
SAE 10W
–25°C & above
(–13°F & above)
SAE 10W-30,
10W-40,
10W-50,
15W-40
–40°C & above
(–40°F & above)
SAE 5W-20,
5W-40
8. Grease
fittings
As required Grease
Consistency number: NLGI No. 0,
1, or 2
Notes: 1. See “IN COLD WEATHER” in “MEASURES AGAINST COLD OR HOT WEATHER (page 3-10)”.
2. Use gasoline for gas-powered trucks and light oil for diesel-powered trucks. See page 2-22.
3. For more information about lubricants to be used, contact your local UniCarriers dealer.
5-11
SERVICE DATA
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