Oil Change Interval

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Burla

Senior Member
Military
Joined
Apr 28, 2012
Posts
23,107
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44,440
Ram Year
2010 Hemi Reg Cab 4x4
Engine
Hemi
For the uneducated... What criteria is my 2011 5.7 hemi using to determine when my oil needs changing? I normally change or have change the oil and filter every 3000 to 4000 miles. This morning when I started the engine, with 3500 miles on the oil, I had a message on the display indicating it was time to change it. How exactly did the truck determine that? I bought the truck used with 9800 miles on it, it now has 136k with changes every 3 to 4k since I owned it, I am the second owner.

As an aside, this truck replaced a 1999 Ram with the 5.2 engine that I purchased new. I changed that oil every 3 to 4k miles also. At the time I traded that Ram in for the current 2011 model it had 450k miles. Although it helped to keep the neighborhood mosquito in checked it was the best (longest lasting) vehicle I have ever owned.
Only one way to educate yourself on this one, take an oil sample when you change your oil and send it to blackstone oil labs. Pay extra for tbn (total base number), you need tbn, tbn sets your interval. TBN fights TAN (total acid number), and as long as you have good TBN, there is no reason to change oil in most cases. Every engine is different, anything else is a guess, your used oil analysis will set your interval. I'd say go at least 5k miles on that sample.

Go get yourself a few royal purple 20-820's, as good as it gets for long filtering. Not their oil, but their filters. BGMOA is also tbn insurance, if you run a long interval, adding some bgmoa 1/2 way through an interval will be like insurance against acid buildup. If you have an dry ticking, sounds like a knock, look up lubegard and redline threads.

we have a blackstone thread, if you get one, post over there for feedback on everything in the report.
 

Marmay

Senior Member
Joined
Nov 7, 2021
Posts
180
Reaction score
206
Location
Ontario
Ram Year
2019
Engine
Hemi 5.7
I allways follow the oil percentage reminder in all my cars,with no problem,till I buy Ram,this computerized oil reminder design by FCA is a one big f..up,it makes false belive for the owner that he is doing right following the computer,for this misleading procedure they own the Ram guys millions of $.
 
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