[valiant67]

I always changed my oil at the dealer, it was cheap enough and convenient. Never a problem on mine while I owned them, though I think 170k was the highest mileage I went on one.
The 2007 Magnum had some lifter work done while it was still in police service. I'm guessing it was a big issue for that department because when the 2013/2014 orders came up, they only considered Ford and Chevrolet for the routine patrol cars. The only Chargers they would buy were for freeway patrol.

 

[valiant67]

Ok, when did the LA engines change to pushrod oiling? The ones I worked on, including at the dealership (Tysinger Motors in Hampton VA) had stamped rockers like the B wedge engines and the lifter and push rod geometry was straight. When the lifters were removed the oil gallery for them was right there. I just looked at my AllData for a 2003 5.9L Ram and it still shows the lifter to rocker oil flow route and the dual galleries in the block. The rockers look a whole lot like the ones in my Ford 7.5L engine, complete to the deflector tab over the pushrod oil hole and the sled pivot.

Pushrod oiling was part of the change from LA to Magnum (so 1992 for 3.9 and 5.2, 1993 for 5.9). So technically LA never had pushrod oiling.