Originally Posted by akinney
First oil change and analysis. Mine was about 95% highway driving and some dusty gravel roads. Using aFe ProGuard 7 drop-in oiled filter. No other powertrain mods. No towing, but lots of trips near max payload.
I'm watching my silver number closely since it is higher than others I've seen and it can be a telltale sign of early oil cooler failure (solder degrading because of bad interaction with coolant), which has been an issue on some of the RAM 1500 Ecodiesels. I've also seen a small amount of brown sludge on the inside of my coolant overflow tank. Could be normal, but time will tell.
Here's my second oil change and analysis. This time it's Mobil 1 ESP 5W30. The high flash point was notable and one of the reasons I chose this oil.
Iron was still a tad high, but not out of the ordinary for a second oil change. Still in the wear-in wash-out phase.
For what it's worth, my coolant tank has been normal. No more sludge besides that small amount when the engine was new. Still some silver in the report, but it came down slightly.
A note on my oil filter. With this change, it was the aFe ProGard D2. Insolubles were exactly the same as the first change that had the factory filter. I got a 4 pack of them from Amazon for about $60 recently, so they can be economical.
Still the same air filter. I just tap out the bugs/grass/seeds every 10K miles. When I get to 30K miles, I'll wash and re-oil the filter per aFe's instructions.
Still lots of highway driving with some light off-road.
I stayed with the Mobil 1 ESP 5W30 since I still had some on the shelf and it looks like this oil analysis supports that decision. Maybe I'll switch to the new 5W40 standard when FCA figures out what they want for the pre-2016 model years. I'm hearing about shorter oil change intervals with the 5W40 in the 2016 model year, which wouldn't make me happy.