GM 6.6L Gas L8T Oil Report: OUT OF SPEC at 19,000 Miles?
In this video I'm diving into the 19,000-mile oil analysis on my 6.6L gas L8T engine in my 2024 GMC Sierra 2500HD. If you've spent any time on the truck forums, you've probably seen the rumors: oil consumption, debates over 5W-30 being too thin, and questions about long-term reliability. Today, I'm cutting through the noise with hard data. I just got my 3rd Blackstone Laboratories oil report back (5th oil change), and while the engine break-in looks incredible, there was ONE specific number that fell completely out of spec. Is the L8T burning oil? Did my oil fail? Let's look at the numbers and find out! 👇 TOOLS & OIL USED IN THIS VIDEO (Affiliate Links): 👇 Pennzoil Platinum 5W-30 - https://amzn.to/4bcpsMv AC Delco PF63 Oil Filter - https://amzn.to/47xx62L Oil Filter Wrench - https://amzn.to/46NUatP or https://amzn.to/4lfH0ff Oil Drain Pan - https://amzn.to/4bu45az Funnel - https://amzn.to/4rfIl73 Air Filter (PAPER K&N) - https://amzn.to/3OTSAR6 By using these links to purchase your maintenance gear, you help support the Adventure Rocks channel at no extra cost to you! 📺 WATCH NEXT: Missing Oil - I Measure Consumption - • I Measure L8T Oil Consumption Over 5,500 M... ⏱️ CHAPTERS: 00:00 The 19k-Mile L8T Truth 01:30 Oil Change Setup & Easy Maintenance 02:33 The Good News: Engine Break-In is Complete! 04:14 Oil Consumption 06:58 The "Red Flag": Out-of-Spec Viscosity Explained 10:40 Final Verdict 🗣️ JOIN THE CONVERSATION: What oil are you running in your 6.6L gasser? Have you ever sent a sample off to Blackstone or had any oil consumption issues? Drop a comment below and let me know! 🔥 GEAR I USE & TRUST 🔥 Upgrade your setup with my curated lists! 🔟 Top 10 Premium RV Upgrades - https://amzn.to/4uFkb7Q 🧢 What I Wear On & Off Camera - https://amzn.to/4xrPF3N 🛠️ Essential RV Gear & Tools - https://amzn.to/4gf8ml6 📦 Everything I’ve Bought for the Brinkley Z 2810 - https://amzn.to/3OMYDY3 ⛓️ GMC/Chevy HD Truck Essentials - https://amzn.to/4giGNau 🦾 Ultimate HD Truck Suspension - https://amzn.to/3SpthrI 🛻 Truck Bed Essentials - https://amzn.to/4vUg2xX 🏕️ Family Games - https://amzn.to/3S7pAa8 👉 Browse Everything Here - https://adventure.rocks/store (as an Amazon Associate I earn from qualifying purchases) #GMCHD #L8T #Silverado2500 #Sierra2500 #TruckMaintenance #BlackstoneLabs #AdventureRocks #WeekendWarrior

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