Thinking of selling my new 6.2L Denali...

[KMeloney]

Admittedly I was getting a bit anxious about the news concerning the engine. My Tahoe is only 4 months old, so to speak. It has 9,000+ miles on it now and I am getting ready to take a long trip. Supposedly the oil range can be up to 7,500 miles between oil changes but the dealer wanted to change oil at 5,000. Is that the best route to take to hopefully negate some of the concern about engine failure: oil change every 5K?

It certainly can't hurt.

 

[PPV_2018]

Reality is even the new land rover defender is way more reliable than a cursory forum search will show.

I love this entire post and agreed wholeheartedly but this part is where you lost me. Land rovers *initial* quality may be great. But they are truly trash once over a certain threshold. Don’t care how well they were maintenanced.

Like the old saying goes, if fluid ain’t underneath it, fluid ain’t in it. (Had a 2000 Land Rover discovery, very FUN truck, but one of the worst vehicles i ever owned).

I still agree with the main sentiment that forum naysayers can make you overthink the most trivial of things.. let any particular forum tell it, and you’d think there is no reliable vehicle ever made.

 

[jfoj]

Anyone planning on running OCI over probably 6000k miles should probably be performing oil sampling at some fixed interval to determine if the oil contamination is becoming a problem.

A kit like this if the tube will fit down the dipstick can be used to obtain an oil sample. I know the earlier 6.0l had a flattened dipstick tube and could not fish anything inside it.

https://www.amazon.com/Extractor-Multi-Use-Transfer-kits%EF%BC%8Cinclude-tube%EF%BC%8Cbottle%EF%BC%8C/dp/B0C6PZX5C3/ref=asc_df_B0C6PZX5C3?mcid=adeabd43351338adafc0868f05f2d35c&tag=hyprod-20&linkCode=df0&hvadid=693334113981&hvpos=&hvnetw=g&hvrand=776539549747177221&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9009963&hvtargid=pla-2201989672079&psc=1

But for the money that is spent on oil analysis, you might as well just change it. In most areas you can get a quality synthetic oil and filter for about $50 if you are doing your own oil changes. There are other reasons to have shorter OCI in these newer DI engines. My plan, and this is my plan, is not to exceed 4000 miles between oil changes. Some may think this is too often, but this is my plan. I really do not trust the fuel contamination and oil breakdown and carbon or potential sludge build up with ultra long Oil Change Intervals. Unfortunately I think the DI engines introduce a lot of cylinder oil wash down and carbon buildup with the low tension oil rings can be problematic. Not sure there is a real solution for much of this.

All the marketing hype about 15,000 mile oil and 15,000 oil filters is not something I am going to buy into.