Used diesel trucks at Tailgate Motor Co. in Fremont, NE

Searching for used diesel trucks in Fremont, NE usually means one thing: you have work to do. Towing a trailer, hauling equipment, or running a farm or job site across eastern Nebraska — a diesel pickup earns its keep in ways a gas truck can't. At Tailgate Motor Co. in Fremont, diesel trucks are a big part of what we stock and sell, and this guide covers how to buy the right one.

The Three Diesel Engines You'll Shop

Nearly every used diesel truck on our lots runs one of three engines. The Ram Cummins (6.7L inline-six) is known for low-end torque and long service life. The Ford Power Stroke (6.7L V8) leads on factory tow ratings in the newer model years. The Chevy and GMC Duramax (6.6L V8) pairs a smooth Allison transmission with strong highway manners. There is no bad pick here — condition and maintenance history matter more than the badge on the fender.

What to Check Before You Buy a Used Diesel

Diesels cost more to fix than gas trucks, so shop carefully. Ask for maintenance records, especially oil and fuel filter intervals — neglected fuel filters are the number one killer of modern diesel injectors. Cold-start the truck if you can: excessive white smoke or a long crank points at glow plugs, injectors, or tired batteries (most diesels run two). Check for blow-by by loosening the oil fill cap at idle, and look underneath for fuel or coolant leaks. If the truck has a DEF emissions system, ask whether it has ever thrown codes — emissions repairs are the most common surprise bill on 2011-and-newer diesels.

Diesel vs. Gas: Which One Do You Actually Need?

If you tow heavy more than a few times a month, drive long highway miles, or plan to keep the truck past 200,000 miles, diesel usually wins. If your truck mostly runs short trips around town, a gas engine is cheaper to buy and maintain. We break the full comparison down in our gas vs. diesel guide, including the towing section most Fremont buyers ask about.

Ready to shop? Browse our current used trucks for sale or the full used inventory across our Fremont North, Fremont South, and Wahoo lots. Found a diesel you like? Call us at 601-506-0774 and we will pull its history and walk you through it.

Two of the diesels on our lots right now are GMC Sierra 2500 HDs — a 2023 at $38,348 and a 2021 at $38,298 — and if you’re shopping from the Seward side, we just wrote up the full GMC lineup, Sierras and Yukons both, in our GMC dealer in Seward, NE post.

Filed under: Trucks & Towing