I just noticed today that a "knocking" sound is coming from seems like the bottom of my motor. It's a 05 Dodge Rumble Bee with a 5.7 hemi and has about 116,500 miles. I used Royal Purple 5w-20 the las

can be from lots of source
even loose exhaust header collector flange or its gasket.
allowing those 2 pieces to pound each other.
or any thing on then engine loose.
all accessory drive item? alt,p/s,A/c etc. i drop belts.
or
the induction mount brackets and braces, see all that
stuff on top of motor, some are mounts.

you didnt say how long it takes to get nose. only rpm
hot engine, cold,both, , hot restarts?
in park, neutral and driving, it makes noise?
just some clues.

is 5.7 hemi a inerfearence motor

Is this a knock or clicking sound? Hemi's are known for breaking exhaust manifold bolts and causing a clicking sound which is a exhaust leak.

Rings & bearings & oil pump need urgent attention!
Cheers Rob

Might be a bad mass air flow sensor. Need a little more info. I am a crysler master tech so give a bit more info,plz

have seen egr valve cause performance problems without setting any codes..and if egr is not working properly,can cause a spark knock..oxygen sensors as well..also make sure no injector or coil connectors are miswired to other cylinders

there is a break in period, but there is no reason for you engine to be sluggish, if that would be the reason all new cars would run sluggish. if you have arcing that mean that your not running on all cylinders your dealer should heck your car

Sometimes a valve lifter will stick and cause a ticking it is possible that a valve lifter has lost its prime or it might be that the oil is too thin. Wthout more info my bet would be a lifter

2 knock sensors are used..small black plastic sensor bolted into engine block below each exhaust manifold..be careful not to over torque bolts upon installation

Manual 6 quarts
Automatic depends on why it's being added. If bone dry try 8 quarts and check. Always check warm in no gear, if you can't be carefullllll not to over fill. Atf +4 is what dodge automatic. take