Agreed, the point was that I doubt anyone would look to see if you were using 5w-40 or 0w-40 when determining if your warranty was going to be voided.Almost no one follows the break in procedure and I have never heard of a warranty being voided over it. Break in is actually for the trans and rear end not the engine.
I agree. I doubt a dealer would bother with checking oil weight. The dealer wont waste the money as they dont have final say in a warranty issue. The problem is if something happens to cause the engine to be replaced under warranty the dealer sends the engine back to FCA. FCA will check oil among other things.Unless the dealer sends an oil sample out for analysis (and even then, doubtful to determine the exact weight) there's virtually no way to finger-test it and tell if it's 0 or 5 weight...especially when it's not freezing cold. Remember the W means winter...equals cold.
Agreed, the point was that I doubt anyone would look to see if you were using 5w-40 or 0w-40 when determining if your warranty was going to be voided.