---
id: should-i-choose-the-gas-or-diesel-engine-in-the-gmc-sierra-3500-hd
title: "Should I choose the gas or diesel engine in the GMC Sierra 3500 HD?"
category: guide
subtopic: sierra-3500hd-engines
page_type: guide
source_url: "https://www.markquartmotors.com/research/gmc/sierra-3500hd.htm"
tags: ["GMC", "Sierra 3500 HD", "Duramax diesel", "V-8", "engine options"]
questions:
  - "What's the difference between the gas and diesel engines?"
  - "Is the Duramax diesel worth it?"
  - "How much horsepower and torque does each engine have?"
  - "Which engine is better for towing?"
related: [sierra-3500hd-overview, sierra-3500hd-trailering]
dealer: Markquart Motors
---

The 2024 GMC Sierra 3500 HD offers two impressive engine choices, each suited to different needs.

**Standard Gas Engine:** The 6.6L V-8 produces 401 hp and 464 lb-ft of torque paired with a 10-speed automatic. It's refined and responsive, great for everyday driving and moderate towing.

**Available Duramax Diesel:** The 6.6L Duramax turbo-diesel V-8 generates 470 hp and 975 lb-ft of torque with an Allison-certified 10-speed automatic. This engine is engineered for those who regularly tow heavy loads, delivering the maximum 36,000 lbs towing capacity.

**The Choice:** If heavy towing is your priority, the Duramax is the superior option. The extra torque and towing capacity make it ideal for serious work. The gas engine is a solid, reliable choice if you don't regularly haul at maximum capacity.

Both engines work seamlessly with rear- or four-wheel drive. For personalized advice on which fits your lifestyle, the team at Markquart Motors is happy to help. Call (715) 833-0444 to discuss your towing needs and test drive both options.