- 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: Buick Regal (1997 – ) | Engine | Capacity | Intervals |
|---|---|---|---|
| Regal 2.0L VVT Turbo (164 kW) (2011 – 2012) | LHU | 5.7-6 l 6.02-6.34 US Quarts / Filter: n/a | 3 000 miles |
| Regal 2.0L VVT Turbo GS (201 kW) (2012 – 2012) | LHU | 6 l 6.34 US Quarts / Filter: n/a | 3 000 miles |
| Regal 2.0L VVT Turbo FWD (193 kW) (2013 – ) | LTG | 4.7 l 4.97 US Quarts / Filter: n/a | 7 500 miles / 12 months |
| Regal 2.0L VVT Turbo AWD (193 kW) (2013 – ) | LTG | 5.7 l 6.02 US Quarts / Filter: n/a | 7 500 miles / 12 months |
| Regal 2.4L VVT (2011 – 2012) | LAF | 4.7 l 4.97 US Quarts / Filter: n/a | 40 000 km |
| Regal 2.4L VVT (2012 – 2012) | LEA | 4.7 l 4.97 US Quarts / Filter: n/a | 3 000 miles |
| Regal 2.4L VVT (2013 – ) | LEA | 4.7 l 4.97 US Quarts / Filter: n/a | 7 500 miles / 12 months |
| Regal 2.4L VVT eAssist (2012 – ) | LUK (eAssist) | 4.7 l 4.97 US Quarts / Filter: n/a | 7 500 miles / 12 months |
| Regal 3.8 V6 (1997 – 2004) | L36 | 4.3 l 4.54 US Quarts / Filter: n/a | 12 months |
| Regal 3.8 V6 Supercharged (1997 – 2004) | L67 | 4.3 l 4.54 US Quarts / Filter: n/a | 12 months |
| Regal 2.0L VVT Turbo FWD (193 kW) (2015 – ) | LTG | 4.7 l 4.97 US Quarts / Filter: n/a | 12 months |
| Regal 2.0L VVT Turbo AWD (193 kW) (2015 – ) | LTG | 5.7 l 6.02 US Quarts / Filter: n/a | 12 months |
| Regal 2.4L VVT eAssist (2015 – ) | LUK (eAssist) | 4.7 l 4.97 US Quarts / Filter: n/a | 12 months |