2020 GMC/Chevrolet Diesel Engine
“The optional engine remains the largely carryover 6.6-liter Duramax V-8 turbo-diesel—445 horses and 910 lb-ft—but is now mated to a 10-speed version of the excellent Allison automatic gearbox, up fro...
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“If it can’t dead start a 42klb load on a 28% grade with a 34mph headwind and one rear wheel in a pile of fresh dog poo, it fails my gradeability test.”
Sincerely,
-blt2ski
Sincerely,
-blt2ski
