GMC Sierra Small vs Big Duramax Diesel Truck Comparo: Which Tows Better & Cost Less at The Pump?

( https://www.weigh-safe.com/TFL ) Check out these smart, lightweight and heavy duty hitches! ( https://www.completetrailers.com) Trailers to get the job done. ( https://www.allTFL.com ) Check out our new spot to find ALL our TFLstudios content, from news to videos and our podcasts! In this comparison, Andre and Kase test out the 2025 GMC Sierra AT4X AEV against the 2025 Chevy Silverado 2500HD Trail Boss. Should you buy a heavy-duty truck to tow, or is a half-ton 1500 truck the better option? Here's how each one performs! (   / tflcar   ) Visit our Patreon page to support the TFL team! Credits: Ian Chisholm Gavin Faulkner Kase Van Rees Andre Smirnov Watch more videos from TFL Studios: The Fast Lane Truck (    / tfltruck   ) The Fast Lane Car (    / tflcar   ) TFLoffroad (    / tfloffroad   ) TFLbike (    / tflbike   ) TFLnow (    / tflnow   ) TFLclassics (    / tflclassics   ) TFLtalk (   / tfltalk   ) TFL Podcasts: TFL Talkin' Cars Podcast ( https://redcircle.com/shows/tfltalk-c... ) TFL Talkin' Trucks Podcast ( https://redcircle.com/shows/tfl-talki... ) 0:00 Intro 1:20 Fill Up 2:35 Begin the Denver 100 Loop 3:35 Under the Hood 4:48 Mirrors & Ride 8:02 Weigh Safe Hitches & Trailers 10:22 Half-way Update 12:35 Payload & Towing Specs 14:22 Finish the Loop 15:17 Fill Up & Results 18:08 Verdict 19:25 Price Comparison #duramax #hd #heavyduty #gmc #chevy #chevrolet #denver100 #denver