2012 through 2014 Yukon Denalis.

[14RamHemiSport]

not good enough should do every 3000-3500 for maximum engine life.

esp with AFM and if it has VVT .enabled. with 3000-3500 Engine life expectancy will be about 250,000 with minimal work...

depends what you run for oil. not all oil is created equal.

 

[Kraig]

I also have an 09 Durango Limited Hemi with 140k and no issues. no AFM issues...

*yet

 

[PG01]

depends what you run for oil. not all oil is created equal.

Lol at screen name

 

[Seamus]

While I agree, many issues with these motors are from poor maintenance or none at all, the second is poor oil quality as in cheap oil. I run Mobil 1 in all my cars. I also do oil analysis on each vehicle. Some cars beat up the oil worse than others. But on my Gm LS motors 5000 miles is my target and the oil is still golden brown with good oil analysis recommending 7500 mile intervals?! I still stick with 5k but don't lose my mind if I am over. If I were using a quality Dino oil 3500 would be my number. Remember a quality filter is as important as the oil. If it's not caught in that filter its in your oil making the oil abrasive causing wear.

 

[avalonandl]

I have 5k miles on the oil in my Denali. Purchased with 134k miles and not certain how the prior owners maintained the vehicle. Oil is golden amber now so it's going in for the free oil change at dealer with 28% on OLM thursday.

Prevention is cheap.