Is This Why Some 2022+ Toyota Tundra Engines Are Failing on the Highway?

Recent reports from owners suggest some 2022+ Toyota Tundra engines have failed while driving at highway speed. In this video we examine real owner reports, possible causes, and whether oil film strength, load conditions, or the V35A-FTS twin-turbo engine design could play a role in these failures. Many catastrophic engine failures are assumed to occur during cold starts, but several Toyota Tundra engine failures appear to be happening while the truck is fully warmed up and under load on the highway. That raises an important question: could sustained load and high temperature conditions be a major stress point for modern turbocharged engines? Chapters: 0:00 Intro – Are 2022+ Tundra Engines Failing at Cold Start or Under Load? 0:25 Reports of Tundra Engine Failures While Driving on the Highway 1:24 Real Owner Examples: Sudden Engine Failure and Limp Mode 2:11 Pattern Emerging: Warm Engines Failing at Highway Speeds 2:48 Hypothesis – Is Oil Shearing Out Under High Load? 3:03 How Oil Film Protects Bearings in Turbocharged Engines 3:50 What Is High Temperature High Shear (HTHS) Oil Viscosity? 4:20 0W-20 vs 5W-30 Oil Protection Differences Explained 5:10 Why Higher Oil Film Strength May Prevent Bearing Failure 6:22 Could Oil Choice Influence Tundra Engine Longevity? 7:34 My Real-World Experience Running 5W-30 in a 3rd Gen Tundra 8:07 Are All Tundra Engines Failing? Reliability Perspective 8:46 Data Request – Oil Viscosity, Mileage, and Failure Reports 9:08 Final Question – Is High-Temperature Protection the Key? This video does not claim a definitive cause of failure. Instead, we apply a data-driven approach to identify possible patterns and invite owners to share their real-world experience. If you own a 2022+ Toyota Tundra with the V35A-FTS twin-turbo V6, share your experience in the comments: • model year • mileage • oil viscosity used • oil change interval • driving conditions when the failure occurred The goal is to better understand whether modern turbocharged truck engines experience their greatest stress during cold start or during sustained highway load. iTorqueDIY helps Toyota truck and SUV owners get their vehicles past the 200,000-mile mark and into 15+ years of service with fewer surprises and lower risk — especially as Toyota moves deeper into modern turbocharged engines and complex drivetrains! If your goal is to own a Toyota that reaches 200k miles and beyond, you’re in the right place — this channel is built for long-term owners. The content on iTorqueDIY is for educational purposes only and does not constitute professional advice. Vehicle maintenance involves risk, and viewers assume full responsibility for any actions taken. iTorqueDIY is not liable for injuries, damages, or losses resulting from use or misuse of this content. Always consult your owner’s manual and a certified mechanic before performing any repairs or modifications.