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  1. D

    Dexos D list update!

    Oh, happy day? https://www.gmdexos.com/brands/dexosd/index.html
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    DEF "contaminated"?

    Tahoe threw a code yesterday when heading out with 1 segment of the DEF level gauge highlighted (1/8 tank?) and got a DEF contaminated (can't remember if that was the exact word) error and an admonition we'd be held to 65 MPH in 100 miles. Well, I stopped at the one Costco in the area without...
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    Has anyone used Restore on the LM2 or LZ0?

    Figure it's worth a shot, since we're losing a quart per oil change.
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    Here's a new one - transmission

    Started out from Bodega Bay with the travel trailer this morning and looped around to I-80 and north toward Oregon and stopped early in Orland for fuel after about 180 miles. Fuel mileage was terrible, like 8 MPG. Continued heading north and realized I had never seen the gear indicator on my...
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    Disable Hill Assist

    So, has anyone found a way to disable the hill assist? It's a super big pain when trying to hook up a trailer. Actually, it's legitimately dangerous. Tow mode doesn't turn it off, and disabling traction control doesn't disable hill assist. Thanks, Dan
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    No one grumbling about LZ0 yet?

    305hp/495ftlbs in 2024. I hope Banks can do as well, but seems GM are using different hardware to achieve this. https://gmauthority.com/blog/gm/gm-engines/lz0/
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    Diesel...10L80 L shift mode

    So, this is supposed to be manual mode, right? Set the gear you want and just use the massive torque to trundle down the highway? My Tahoe downshifts if I push the gas much at all to speed up and it's annoying.
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    Cargo cover?

    So, either my search skills vaporized, I'm using it wrong, or I'm super picky. But the cargo cover is terrible. You can't use it behind the third row and if you leave it installed, you can't raise or lower the third row seats... This is not rocket science... is it?

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