Hi I am new to this forum, so i hope that this post goes to the right place. I have a question maybe someone here can answer. Last year i bought a new Jeep wrangler with the the 3.0 liter turbo eco diesel engine. This engine according to the manufacture requires a specific oil, as it seems most vehicles do nowadays. Anyway the oil that it requires is 5-40 Euro spec. synthetic, I know that Pensoil makes one that meets these requirements and also Castrol makes one as well, and there maybe others, also whatever brand the Jeep dealerships have on hand that they buy in bulk. So long story short i took my Jeep diesel in to my local dealership for its first service last May at 5000 mi a little early since the recomended change is 10,000 mi and it also holds 9 quarts of oil pretty good for a 3 liter v 6 engine. So the service is basically just oil change, tire rotation and some general inspections. Of course you trust that the dealership knows what they're doing right?.. Well maybe not, a few weeks ago i was going through my service records ( its had two oil changes since that one last May ) anyway i noticed the invoice for that first oil change read that they had changed the oil with 5-40 Rotella, i did not ever remember seeing Shell Rotella being on any of the approved lists of oils for this engine. Needless to say i was very upset and called Shell oil to get more info, the oil tech guy that i spoke with told me that their Shell Rotell 5-40 was NOT approved for the new gen ecodiesel engines and that it should be drained out immediately. So my question is for anyone who might know is: could my engine have been damaged by this mistake, possibly causing premature wear or other damage, if so what should i do about it, if anything?..or am i being a worry wart? Thanks