I live in the Dallas/Fort Worth Tx area and both my `04 Subaru WRX Sport Wagon and my wife`s 2007 Dodge Magnum R/T (wagon hence the "wagon family")... BOTh have this white-ish/grey film on the interior glass, mainly the windshield. It is oily in nature and refuses to go away.

I have the Invisible glass triangle tool thing, fresh micro-fiber bonnets. two of them actually, as to not cross contaminate the cars. Both bonnets have been cleaned in the wash in hot water and mild detergent, no treatments, no drier sheets etc. So I know its not the MF bonnets. I have tried distilled h20, windex, Stoners, invisible glass, and meguires glass products... NOTHING is cutting this oily mess...

I clean the windows and within 24-48 hours the layer reappears.

the only thing I have not tried is covering the dash in 2-3 layers of bath towels, washing the glass in dawn dish liquid+water and a fresh MF cloth, let air dry then try normal cleaning methods...

Neither car was owned by a previous smoker and we are 2nd owner on both.

PLEASE HELP! I am lost.. its driving me crazy!

Rob