2018 Buick LaCrosse Wheel Backspacing
5.65 in · 5.82 in · 5.15 in
Quick specs
- Backspacing
- 5.65 in · 5.82 in · 5.15 in
- OEM offset
- ET42 · ET40
- Wheel size
- 8x18 · 8.5x20 · 8.5x19 · 7x17
- Tire size
- 235/50R18 · 245/40R20 · 245/45R19 · 235/55R17
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.5i · 2.5L, LHN, I4, Hybrid | 8x18 | 8.5x19 | ET42 / ET40 | 5.65 in | 235/50R18 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.5i · 2.5L, LHN, I4, Hybrid | 8.5x20 | 8.5x19 | ET40 | 5.82 in | 245/40R20 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 3.6i · 3.6L, LGX, V6, Petrol | 8x18 | 8.5x19 | ET42 / ET40 | 5.65 in | 235/50R18 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 3.6i · 3.6L, LGX, V6, Petrol | 8.5x20 | 8.5x19 | ET40 | 5.82 in | 245/40R20 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 1.5T · 1.5L, LFV, I4, Petrol | 7x17 | 8.5x19 | ET42 / ET40 | 5.15 in | 235/55R17 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 1.5T · 1.5L, LFV, I4, Petrol | 8x18 | 8.5x19 | ET42 / ET40 | 5.65 in | 235/50R18 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 1.8i · 1.8L, LKN, I4, Hybrid | 7x17 | 8.5x19 | ET42 / ET40 | 5.15 in | 235/55R17 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 1.8i · 1.8L, LKN, I4, Hybrid | 8x18 | 8.5x19 | ET42 / ET40 | 5.65 in | 235/50R18 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LTG, I4, Petrol | 8x18 | 8.5x19 | ET42 / ET40 | 5.65 in | 235/50R18 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LTG, I4, Petrol | 8.5x20 | 8.5x19 | ET40 | 5.82 in | 245/40R20 / 245/45R19 | 5x115 | 70.3 mm | M12 x 1.5 |
Compare wheel position See wheel offset
Backspacing values above are calculated from OEM wheel width and offset using BS = width/2 + offset_mm/25.4 (same formula as the fitment calculator).
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More specs for the 2018 Buick LaCrosse
Backspacing on these pages is calculated from OEM wheel width and offset (width/2 + offset_mm/25.4). Higher backspacing seats the wheel farther inward; lower backspacing moves it outward.