I made it! 2015 Yukon XL Denali, , 300,000 miles

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dpollak81

dpollak81

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CMoore711 said:
@tuffguy23 That's an impressive life span for the 8 speed! I think you're spot on with the fluid and filter change intervals, good maintenance on fluids can go a long way and your vehicle here surely supports that.
Click to expand...
From what I understand and have heard the 8 speeds are actually pretty durable but only get replaced most of the time because people can’t stand the way they drive and their quirkiness… which the blue fluid and some of the TSBs definitely smooth out somewhat.
 
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