Oil capacity in 2015 yukon Denali 6.2?

[STORMIN08]

without analyzing it, it is an educated guess.

Mobil 1 offers 20K mile or 1 yr interval oil... But with what filtration ??? dependent on the base product and additive package, it may last...but in my case, i dont mind old school piece of mind.

with current synthetics, i change at 5K on personal vehicles...My company truck i do the 7500, so far at 80K miles...i cannot tell any difference

 

[SuperOldSchool]

Just change it at 5k and call it a day. Clean oil is critical, especially if there are possible brake booster issues. It’s lubed by engine oil:

https://static.nhtsa.gov/odi/tsbs/2016/SB-10081053-2280.pdf