April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Controls - Service & Adjustment Specifications - 4.3L: Capacities

FLUID CAPACITY (CRANKCASE) ⁽¹⁾

Application

⁽²⁾ Quantity Qts. (L)

All Models

4.5 (4.3)

⁽¹⁾	Fluid capacities listed are approximate. Always fill to FULL mark.

⁽²⁾	Includes oil filter.

FLUID CAPACITY (COOLING SYSTEM) ⁽¹⁾

Application

⁽²⁾ Quantity Qts. (L)

Astro & Safari

Automatic Transmission

16.5 (15.6)

Manual Transmission

13.5 (12.8)

Blazer, Jimmy Canadian & Sonoma

Automatic Transmission

11.7 (11.1)

Manual Transmission

11.9 (11.3)

Chevy Express & Savana

12.6 (11.9)

Sierra & Silverado

Automatic Transmission

12.6 (11.9)

Manual Transmission

12.9 (12.2)

S10 Pickup

Automatic Transmission

13.8 (13.1)

Manual Transmission

14.0 (13.3)

⁽¹⁾	Fluid capacities listed are approximate. Always fill to FULL mark.

⁽²⁾	Includes heater.

FLUID CAPACITY (AUTOMATIC TRANSMISSION) ⁽¹⁾

Application

⁽²⁾ Quantity Qts. (L)

Astro & Safari

5.0 (4.7)

Blazer, Jimmy Canadian, Sonoma & S10 Pickup

5.0 (4.7)

Chevy Express & Savana

4L60-E

5.0 (4.7)

4L80-E

7.7 (7.3)

Sierra & Silverado

4L60-E

5.0 (4.7)

4L80-E

7.7 (7.3)

⁽¹⁾	Fluid capacities listed are approximate. Always fill to FULL mark with Dexron-III, unless specified otherwise.

⁽²⁾	Drain and refill capacity only. Does not include torque converter, unless specified otherwise.

FLUID CAPACITY (MANUAL TRANSMISSION) ⁽¹⁾

Application

Quantity Pts. (L)

Blazer, Jimmy Canadian, Sonoma & S10 Pickup

⁽²⁾ 4.2 (2.0)

Sierra & Silverado

NV3500

⁽²⁾ 4.2 (2.0)

NV4500

⁽³⁾ 8.0 (3.8)

ZF S6-650

⁽⁴⁾ 12.6 (6.0)

⁽¹⁾	Fluid capacities listed are approximate. Always fill to FULL mark.

⁽²⁾	Synchromesh Transmission Fluid (GM 12345349).

⁽³⁾	SAE 75W-85 GL4 Synthetic Lubricant (GM 12346190).

⁽⁴⁾	TranSynd™ Synthetic ATF (GM 12378515).