Air Conditioning Refrigerant R134a

For the air conditioning system refrigerant charge amount, see the refrigerant caution label located under the hood. See your dealer for more information.

Cooling System

• Engine Torque below 660 lb ft (LYA, LYB, LYC)

33.6 qt

31.8 L

• Engine Torque above 835 lb ft (LYD, LQF)

35.0 qt

33.1 L

Engine Oil with Filter*

23.8 qt

22.5 L

*Additional 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 LUBERFINER 750-C, add 14 quarts (13.2 L).

Fuel Tank

• Standard (Single)

50.0 gal

189.3 L

• Optional (Single)¹

50.0 gal

189.3 L

• Optional (Dual)²

75.0 gal

283.9 L

• Optional (Dual)³

100.0 gal

378.5 L

¹Single 50-gallon (189 L) tanks. Not applicable to 4X2 vehicles with 128 inch or 140 inch wheelbases and not applicable to 6x4 vehicles with a 152 inch wheelbase.

²One 25-gallon (94.6 L) tank and one 50-gallon (189.2 L) tank. Available only on 4x2 vehicles with 128 inch or 140 inch wheelbases or 6x4 vehicles with a 152 inch wheelbase.

³Two 50-gallon (189 L) tanks. Not applicable to 4X2 vehicles with 128 inch or 140 inch wheelbases and not applicable to 6x4 vehicles with a 152 inch wheelbase.

Rear Axle - Single Speed

• 15040S

21.0 pt

10.0 L

• 19060S (HPK); 21060S (HPP)

31.0 pt

14.7 L

• 23090S (HPT)

42.5 pt

20.1 L

• 26105S (HPA)

51.0 pt

24.1 L

• S110 (HD2)

15.0 pt

7.1 L

Rear Axle - Tandem

• DS404 (front) (HPE); RS404 (rear)

32.0 pt

15.1 L

Rear Axle - Two-Speed

• 19060T (HPL); 21060T (H15)

38.0 pt

18.0 L

• 23080T (H25)

44.0 pt

20.8 L

Transmission Fluid, Automatic

• 2200 Series; 2350 Series, 2500 Series, 2550 Series

40.0 pt*

19.0 L*

• MD 3000; MD 3500 with PTO Provision

59.8 pt

28.1 L

• MD 3000; MD 3500 without PTO Provision

52.0 pt

24.6 L

*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

• FS5406; FS6406

19.5 pt

9.2 L

• RT8709B

26.0 pt

12.3 L

• RT8908LL

28.0 pt

13.2 L

All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Recheck the fluid level after filling.

Isuzu 6H

LF8

L6

1-5-3-6-2-4