Could doing your own oil change void your warranty since there their is no documentation that a oil change was done in the correct interval?

 

No it cannot. Just document it yourself and keep the receipts for the oil and filters you purchased
Steve

 

+1 just keep a log and receipts in your owners manual!

 

Got it.

thanks

 

Since there is no oil life monitor how long does eveyone wait to change their oil every 3k or 6 months? What about very first oil change?

 

Your oil change light will come on, typically between 3000-4000 miles from what I've seen.

 

According to the manual it says 8k but i usually do it between 3k and 4k because i notice a difference in performance and engine noise (it gets a little louder than normal).

 

like others said keep the receipts.
If however they tried to pull some crap, u could always tell them to do an oil analysis.
But any decent dealer out there would just do the work for you either way seeing they get the money back from Chrysler anyhow...

 

If you keep a log book and the receipts like mentioned above and the dates of the receipts correspond to the dates in the log book with the mileage entries in chronological order, there's not really any way for them to dispute that.

But if you are looking for peace of mind, I have been using Blackstone Labs oil sample service and that may give you the concrete proof to show the dealer you change your oil if you feel like you need it. Plus, they can tell you what types of wear metals are in your oil and in what concentrations, so you can see wear trends throughout the life of your vehicle based on what the analysis results show. If you ever have a major component failure then you can use the analysis results as evidence to show the gradual wear of the part based on its metal in the oil increasing. Plus they will show the oil life, how it's detergents and additives are holding up, and it allows you to document the mileage and dates of oil changes which they print on the analysis report. And it's only 20 bucks. I feel that since I save about that much by doing the oil change myself(synthetic), it justifies me spending the extra 20 for the analysis, plus it gives me peace of mind about the engine internals. I could actually see the initial rise in ring wear metals as the rings broke in and the steady taper off of it as they began sealing around 10-12k miles. We use a similar type of oil analysis, but more detailed with the marine diesels I work on at work and based on the types of metals we find, it helps us diagnose which bearings or components are failing, as usually they have different coatings for each type of bearing.

 

If you use BND Quantum Blue oil you can run it up to 10,000 miles. I did that regularly with my 08 Charger RT. Every oil sample I sent in came back awesome.

BND is awesome. You actually call Brian (the owner) and he talks to you about your driving habits, area you live, mileage, previous issues and tailors a blend specifically for your truck. He is a 5.7L expert and has direct contacts and friendships with the Chrysler engineering folks. Depending on a few factors, the oil will be about $150 +-, but changing it every 10,000, you end up saving in the end.

I understand completely if you are skeptical, but it's definitely worth a look if you want your D to be running strong in 100,000 miles. Just Google BND Automotive.