- Engine: Engine Code. A sequence of letters and numbers. This includes the engine block type and engine family, but may also include other information.
- Capacity: Capacity/Filter capacity in litres(liters). Engine oil fill quantity (Service fill).
- Intervals: Oil Change Intervals (use: normal). Engine oil should be changed at the latest after this time or after miles/km, whichever comes first.
The oil filter must be replaced every time the oil is changed, unless the car's owner's manual recommends otherwise.
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Model: Hummer H3 (2005 – 2010) (USA / CAN) | Engine | Capacity | Intervals |
|---|---|---|---|
| H3 3.5 (2005 – 2007) | Vortec 3500 L52 | 5.7 | n/a |
| H3 3.7 (2007 – 2010) | Vortec 3700 LLR | 5.7 | n/a |
| H3 5.3 V8 (2008 – 2010) | Vortec 5300 LH8 | 5.7 | 12 months |
Model: Hummer H3T (2008 – 2010) (USA / CAN)
 | Engine | Capacity | Intervals |
|---|---|---|---|
| H3T 3.7 (2008 – 2010) | Vortec 3700 LLR | 5.7 | n/a |
| H3T 5.3 V8 (2008 – 2010) | Vortec 5300 LH8 | 13.5 | n/a |