Silverado 1500 Diesel - First impressions
Just picked up a new company rig a couple weeks ago. 2023 Chevy half ton Z71 with the 3.0 Duramax. Near as I can tell it doesn’t have the max towing package (only because the brochure says max tow...
Forum Discussion
Grit dog wrote:
When it’s basically empty, it takes not quite 5 gal of def….whos dumb idea that was, idk. Since 99% of light truck owners buy it in 2.5 gal jugs, the only size offered…so that’s nice. It takes 4.8 gallons and then spills down the side of the truck….
Same problem with my Colorado with 2.8L Duramax. I drive it until the DIC gives me a low DEF warning, then dump in another 2.5 gallon jug.
It holds more than that, but not enough to require 2 full jugs, so I only use one.
Several Youtubers own the 3.0L Duramax. One of them tows a lot and says the DEF consumption skyrockets when towing. He said it was a huge mistake paying fuel station / convenience store prices for multiple jugs of DEF when he drove from Nebraska to Michigan and back. He mentioned it would have been too much of a hassle to go driving through town to find a Wal-Mart to buy it when needed. Next time he does a long trip when towing, he said he'd take a few jugs with him.
Both of them say the engine consumes oil as well. Both have the latest gen of the 3.0L - I think it's the LZO RPO code.
