Uploaded September 2025 | Updated September 2026, 10 hours ago
2006 Peterbilt 379 300 inch wheel base extended frame flat top coffin sleeper C15 with a 13 speed. 1.4 million miles
correct me if I'm wrong but I'm pretty sure with a good set of turbos since it's a twin turbo C15 Caterpillar, should usually be pushing around 40 to 50 lb of boost? still seems rather slow and sluggish so either it's a really tired C15 which has yet to be overhauled at 1.4 million miles or we have a serious boost leak whether it's the charge air cooler or boost boots. Nonetheless, enjoy.
2006 Peterbilt 379 300 inch wheel base extended frame flat top coffin sleeper C15 with a 13 speed. 1.4 million miles
correct me if I'm wrong but I'm pretty sure with a good set of turbos since it's a twin turbo C15 Caterpillar, should usually be pushing around 40 to 50 lb of boost? still seems rather slow and sluggish so either it's a really tired C15 which has yet to be overhauled at 1.4 million miles or we have a serious boost leak whether it's the charge air cooler or boost boots. Nonetheless, enjoy.
