2024 Chevy Duramax Problems. 2 of mine run delo 5w40 year round and the newest one i'm trying the ultra low ash delo 600 adf 15w40. Gm authority has learned that gm intends to buy back certain chevy silverado hd and gmc sierra hd units back from customers due to apparent quality.
2024 chevy silverado 2024 hd. The world’s highest mileage chevy truck.