[Bob Lincoln]

We've had one of these cars for 5 months now, never seen anything like that.

My best guess would be that someone went crazy spraying white lithium grease inside, and rain is washing it down and out the drain holes.

 

[ygdude]

Thought about that but I didn't think white lithium grease would dry and turn powery like that.

 

[Bob Lincoln]

White powdery residue can also be an aluminum oxide.

 

[BlackSheep01]

if there's any hint of oxidization inside the door there's a structural integrity issue to be ruled out. Where on the trunk is this residue appearing?

 

[ygdude]

on the truck its showing up right under the licence plate on the bumper. Again it looks like dried milk shake/ice cream dripped on the surfaces under the door and trunk and ran down the rocker panel or bumper but is dry now and is powdery when touched.

we've cleaned the door off 2 times now.

Dealer didn't really want to look at i or pull then door open to see what it is.

Is there that much aluminum in the door to coorode and leave that kind of deposits?

I'm afraid I'm going to have to take it to the original dealer whom we don't care for and have it looked at.

Thanks.

 

[MickM]

have you been down any gravel roads. When I drive down gravel roads and then wash the car I get a simular thing.
Mick

 

[David Eidell]

I was there when a friend removed a door panel from his 2008 Chrysler 300C and found a denture partial plate in there! No way in heck did that panel come off before we removed it. Sure solved the rattle though.

 

[moparroy]

If it was on a Dart it might be pasta from Italy. :lol:

 

[digitalrailroader]

this is just my 2 cents, but it may be the Silicone Spray they use on the Weatherstripping to keep it from sticking to the Doors/Trunklid.