You can find 0W-8 engine oil used in a handful of Toyota and Mazda vehicles. It's frequently used in hybrids, like the Mazda 2 Hybrid 1.5L sold in overseas markets and the Toyota Corolla Hybrid.

One comment pointed out the increased costs of oil changes for vehicles that use 0W-8 motor oil. “[The] [best] part is it’s $20 a quart from Toyota. Used in the new Prius, the Crown[,] and ...