Cooling System - C4/C5 Models

• 6.6L V8 Automatic Transmission

26.4 liter

27.9 quart

• 8.1L V8 Automatic Transmission

28.2 liter

29.8 quart

• 8.1L V8 Manual Transmission

28.5 liter

30.1 quart

Cooling System - C6/C7/C8 Automatic Transmission

• 7.2L L6 Engine

20.3 liter

32.0 quart

• Isuzu 6H Engine (207 - 275 hp)

32.9 liter

34.8 quart

• Isuzu 6H Engine (300 hp)

32.1 liter

33.9 quart

• 8.1L V8 Engine

30.8 liter

32.5 quart

Cooling System - C6/C7/C8 Manual Transmission

• 7.2L L6 Engine

28.8 liter

30.4 quart

• 7.2L L6 Engine with A/C and Increased Cooling

32.1 liter

33.9 quart

• Isuzu 6H Engine (207-275 hp)

31.0 liter

32.7 quart

• Isuzu 6H Engine (207-275 hp) with A/C and Increased Cooling

34.0 liter

35.9 quart

• Isuzu 6H Engine (300 hp)

34.1 liter

36.0 quart

• Isuzu 6H Engine (300 hp) with A/C and Increased Cooling

34.1 liter

36.0 quart

• 8.1L V8 Engine

31.5 liter

33.3 quart

• 8.1L V8 Engine with A/C and Increased Cooling

33.0 liter

34.9 quart

Engine Oil with Filter

• 6.6L V8 Engine

13.8 liter

14.6 quart

• 7.2L L6 Caterpillar® C7 Engine

28.4 liter

30.0 quart

• Isuzu 6H¹ Engine

22.5 liter

23.8 quart

• 8.1L V8 Engine

9.4 liter

10.0 quart

Check fill level on the oil indicator after initial fill to make sure it is actually full. Oil level may vary depending on vehicle option content.

¹Additional oil is required with auxiliary oil filter systems. Make sure to add enough extra oil to fill the auxiliary oil filter system. For vehicles equipped with the LUBERFINER 750-C, add 14 quarts (13.25 L).

Fuel Capacity - C4/C5 Models

• Standard (Mid-Mounted)

94.6 liter

25 gallons

• Optional¹ (Dual-Tank) (Mid-Mounted)

151.4 liter

40 gallons

• Optional (Mid-Mounted)

121.1 liter

32 gallons

• Optional (Side-Mounted)

132.5 liter

35 gallons

• Optional (Mid-Mounted)

151.4 liter

40 gallons

• Optional (Mid-Mounted)

227.1 liter

60 gallons

• Optional (Mid-Mounted)

302.8 liter

80 gallons

¹One 25-gallon (94.6 L) tank and one 15-gallon (56.8 L) tank

Fuel Capacity - C6/C7/C8 Models

• Optional

132.4 liter

35 gallons

• Standard

189.2 liter

50 gallons

• Optional

189.2 liter

50 gallons

• Optional¹ (Dual Tanks)

264.8 liter

70 gallons

• Optional² (Dual Tanks)

283.8 liter

75 gallons

• Optional³ (Dual Tanks)

378.5 liter

100 gallons

¹Two 35-gallon (132.4 L) tanks

²One 25-gallon (94.6 L) tank and one 50-gallon (189.2 L) tank

³Two 50-gallon (189.2 L) tanks

Front 4WD Axle (G38)

3.6 liter

7.0 pint

Rear Axle - Single Speed

• 80 (GL4)

3.7 liter

8.0 pint

• 19060D (HPM), 19060S (HPK), 21060D (HPN), 21060S (HPP), 22060S (HPG)

14.7 liter

31.0 pint

• 23090S (HPT)

20.1 liter

42.5 pint

• 23105D (HNB), 23105S (HNA)

24.1 liter

51.0 pint

• 26105S (HPA)

24.1 liter

51.0 pint

• S110 (HD2) and S130 (HD1)

7.1 liter

15.0 pint

Rear Axle - Tandem

• DS344 (front) (HPI)

16.1 liter

34.0 pint

• DS344 (rear) (HPI)

14.7 liter

31.0 pint

• DS404 (HPE), DS404P (HPJ) (front/rear unit)

15.1 liter

32.0 pint

• RSH44 (front/rear unit) (HP3)

13.7 liter

29.0 pint

Rear Axle - Two-Speed

• 19060T (HPL), 22060T (HPH)

18.0 liter

38.0 pint

• 21060T (H15)

18.0 liter

38.0 pint

• 23082T (H25)

20.8 liter

44.0 pint

• 26080T (GJ4)

20.8 liter

44.0 pint

Transfer Case (Four-Wheel Drive)

1.9 liter

4.0 pint

Transmission Fluid, Automatic

• 3000 RDS and EVS, and 3500 RDS and EVS with PTO Provision

28.1 liter

59.0 pint

• 3000 RDS and EVS, and 3500 RDS and EVS without PTO Provision

24.6 liter

52.0 pint

• 1000 HS, RDS, MH, PTS and EVS, 2200 HS, RDS, MH, PTS and EVS, 2500 HS and RDS, and 2300 HS and RDS

16.5 liter

35.0 pint

Add 2 pints (1 L) when changing spin-on or remote filter.

See the Allison® Automatic Transmission Operator's Manual for fluid check and maintenance information.

Transmission Fluid, Manual

• ES052-7, ES066-7

10.4 liter

22.0 pint

• FS5205A

5.9 liter

12.5 pint

• FSO8406, FS6305A, FS6305B, FS6406, FS5406A

9.2 liter

19.5 pint

• FS4205A, FS4205B

5.4 liter

11.5 pint

• RT6609

5.7 liter

12.0 pint

• RT8709

12.3 liter

26.0 pint

• RT8908LL

13.2 liter

28.0 pint