CAPACITIES
| Application | (2) Quantity Qts. (L) |
|---|
| All Models | 6.5 (6.2) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Includes oil filter capacity. |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
| (2) | Includes oil filter capacity. |
FLUID CAPACITY (CRANKCASE) (1)
| Application | (2) Quantity Qts. (L) |
|---|
| Avalanche, Suburban & Yukon XL | 14.4 (13.7) |
| Sierra & Silverado |
| A/T | 20.7 (19.6) |
| M/T | 21.1 (20.0) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Includes heater. |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
FLUID CAPACITY (COOLING SYSTEM) (1)
| Application | (2) Quantity Qts. (L) |
|---|
| Allison | 7.4 (7.0) |
| 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. |
| (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. |
FLUID CAPACITY (AUTOMATIC TRANSMISSION) (1)
| Application | Quantity Pts. (L) |
|---|
| Sierra & Silverado |
| NV3500 | (2) 4.8 (2.3) |
| 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 gear oil or Synthetic Lubricant (GM 12346190). (4) TranSynd(tm) Synthetic ATF (GM 12378515). |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
| (2) | Synchromesh Transmission Fluid (GM 12345349). |
| (3) | SAE 75W-85 GL4 gear oil or Synthetic Lubricant (GM 12346190). |
| (4) | TranSynd(tm) Synthetic ATF (GM 12378515). |
FLUID CAPACITY (MANUAL TRANSMISSION) (1)
| Application | Quantity Qts. (L) |
|---|
| Avalanche, Suburban & Yukon XL |
| Borg Warner 4481 | (2) 1.5 (1.4) |
| Borg Warner 4482 | (2) 1.5 (1.4) |
| New Venture 149 | (2) 2.2 (2.1) |
| New Venture 246 | (3) 2.0 (1.9) |
| Sierra & Silverado |
| New Venture 149 | (2) 2.2 (2.1) |
| New Venture 246 | (3) 2.0 (1.9) |
| New Venture 261 | (2) 2.0 (1.9) |
| New Venture 263 | (2) 2.0 (1.9) |
| (1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Dexron-III. (3) AUTO-TRAK II Fluid (GM 12378508). |
| (1) | Fluid capacities listed are approximate. Always fill to FULL mark. |
| (3) | AUTO-TRAK II Fluid (GM 12378508). |
FLUID CAPACITY (TRANSFER CASE) (1)
SERVICE INTERVALS & SPECIFICATIONS
| Component | Interval (Miles) |
|---|
| Accessory Drive Belt | (1) 60,000 |
| Air Filter | 30,000 |
| Automatic Transfer Case Fluid | 50,000 |
| Automatic Transmission External Control Main Filter (Allison) | 7500 |
| Automatic Transmission Fluid & Filter | (2) Or (3) |
| Engine Coolant | 150,000 |
| Fuel Filter | 30,000 |
| Manual Transmission Fluid (Sierra & Silverado Only) | 150,000 |
| Oil & Oil Filter | (4) |
| PCV | 100,000 |
| Spark Plugs | 100,000 |
| (1) Inspect and replace as necessary. (2) On Allison transmissions, if used under severe conditions, replace every 25,000 miles. (3) On all other transmissions, if vehicle's GVWR is greater than 8600 lbs (3900 kg) or if used under severe conditions, replace every 50,000 miles. If used under normal conditions, replace every 100,000 miles. (4) If used under severe conditions, replace every 3000 miles. If used under normal conditions, replace as indicated by CHANGE OIL SOON light or every 12 months, whichever comes first. |
| (1) | Inspect and replace as necessary. |
| (2) | On Allison transmissions, if used under severe conditions, replace every 25,000 miles. |
| (3) | On all other transmissions, if vehicle's GVWR is greater than 8600 lbs (3900 kg) or if used under severe conditions, replace every 50,000 miles. If used under normal conditions, replace every 100,000 miles. |
| (4) | If used under severe conditions, replace every 3000 miles. If used under normal conditions, replace as indicated by CHANGE OIL SOON light or every 12 months, whichever comes first. |
