I purchased a New 2024 AT4 1500 Sierra 1/2 Ton three weeks ago with the 3.0 Ltr Duramax LZ0 engine. I'm on my third tank of Diesel and noticed the average milage is 12L+/100km. Was hoping to see at least 10L~/100Km. I traded in my 2021 Elevation for an upgrade with the 3.0 Ltr Duramax LM2 engine averaging 9L~/100Km. It had 54,000Km on it and found it to have more torque on the bottom end than the 2024. A noticeable difference. Same size of tires 20". I drive both on the Hwy most of the time. I'm hoping I'm not going to be disappointed with the cost of Diesel @ $1.65/Liter. Love both trucks and was hoping this will be my last truck as I am planning to retire in a couple of years. I'm assuming the break in for this small diesel is around 5000Km or 3000miles. Please advise!
Thanks
John Seniuk
Thanks
John Seniuk