A class action lawsuit was served to Valvoline after its Instant Oil Change facility filled a 2025 Kia Sorento with the wrong grade oil, 5-30 instead of 0-30 that the manufacturer specifies (on the fill cap, you actually see the numbers when you look for the cap to open it)

The Indiana plaintiff, Robert Campbell, claims that because Valvoline used a different grade of oil during his service, this resulted in additional expenses, decreased performance, an increased risk of engine damage, loss of warranty coverage, and a reduction in the value of his vehicle. https://www.msn.com/en-us/autos/news/valvoline-sued-after-using-the-wrong-oil-in-customer-s-engine/ar-AA209FvZ