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2023 Chevy Silverado 1500 LZ0 Duramax diesel 6-month update


It’s crazy how times flies! It has now been six months since taking delivery of our long-term review vehicle, the 2023 Chevy Silverado 1500 LZ0 Duramax diesel truck.

I have done long roads trips, towed a few times and generally just drove the 2023 Silverado around town. It has more than 5,000 miles on the truck and is well past the break-in period. There are things I really like about the truck — and a few things I don’t.

2023 Chevy Silverado 1500 LZ0 Duramax diesel

Let’s start with what the truck is if you aren’t familiar. It’s a refreshed 2023 Chevy Silverado 1500, complete with a new interior and minor exterior changes to the front grille.

The engine is the new LZ0 3.0-liter inline six-cylinder turbo-diesel mated to a 10-speed automatic transmission. This replaces the LM2 that came out in 2020 and has minor improvements for reliability, improved performance for torque and horsepower and slightly better fuel economy.

Finally, it is the High Country trim with the maximum towing package and the two-speed transfer case that isn’t available on lower trims.

Likes for the Silverado LZ0

Let’s start off with the likes and they are pretty simple: fuel economy.

This truck consistently gets in the mid-20-MPG range for fuel economy, and I’ve easily gotten 30 MPG on longer road trips. Yeah, 30 MPG for a full-size truck. That’s just crazy.

Other likes include the fact it is quiet, smooth and stylish. Plus, I’ve gotten to really like the shifter.

Dislikes on the Silverado LZ0

The dislikes lead off with oil consumption. Our truck has used 2 quarts of oil in the first 5,000 miles — maybe more depending on how exact the dipstick is for measuring. This is to be expected per a GM service bulletin.

It’s worth mentioning other owners have commented on the oil consumption YouTube video, saying they haven’t noticed any issues. It seems like this is something that could happen but doesn’t always happen to all trucks.

The oil usage doesn’t frustrate me as much as trying to find the specific 0w-20 Dexos D oil the truck takes and making sure I plan ahead to check the oil before a long road trip. This specialized oil is hard to find at the story, and in my neck of the woods, the only place I could purchase it is at the dealer. Looks like it might be time to stock up on the oil via Amazon.

I’ve also had odd issues at times with the infotainment system, and the lack of wireless charger due to a parts shortage still grates. Additionally, the automatic high-beam lights don’t always work well, and the seats, while more comfortable than other GM seats, still need some help.

I’ve also had some bugs with the trailer lights not working right all the time. I’ve attached three different trailers, and each one has had some kind of issue. Something else that’s buggy: the front passenger side parking sensor. It sometimes goes crazy, alerting me to wash it off even after manually wiping it clean.

Watch the embedded video below for more dislikes — and likes.

The bottom line

Overall, I’ve been really impressed with the 2023 Chevy Silverado 1500 LZ0 Duramax diesel. It’s smooth, quiet and powerful — plus, who can argue against getting 30 MPG out of a full-size truck? My dislikes are mostly minor at this point, and I’m hopeful the truck will use less oil the more I drive it.

Tim Esterdahl

Automotive Journalist Tim Esterdahl has been a lover of trucks and SUVs for years. He has covered the industry since 2011 and has pieces in many national magazines and newspapers. In his spare time, he is often found tinkering on his '62 C10 pickup, playing golf, going hunting and hanging out with his wife and kids in Nebraska.

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