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Strange film on inside of windows...
My 70 t has been forming this oily film on the inside windows now that the weather is hot. I clean it off and it returns in a couple of days. I clean it again etc.. What is evaporating in there? I would think that all the vinyl and such would be done offgasing since the car is 35 years old. Any ideas? It's an odd problem.
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1972 Porsche 914 Project 2000 BMW M5 1973 Aermacchi 350 |
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07-17-2006, 10:02 AM
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Wash. State
Join Date: Jun 2006
Posts: 3,569
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 Been treating the vinyl quite a bit? That would explain things, I reckon! What goes on will surely evaporate to some degree? 
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07-17-2006, 10:07 AM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,966
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Some of the plastics in our cars will emit a film on the glass, as will someone smoking inside the cars.
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2021 Subaru Legacy, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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07-17-2006, 10:10 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,268
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do you drive the car with the windows down? I used to get the nastiest crap off of the windows inside my car when I drove everywhere with the windows down.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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07-17-2006, 10:27 AM
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It's a "feature". :>) I've made up my own concoction of rubbing alcohol (isopropyl alcohol) and water and use it clean the windows and it seems to work better than commercial window cleaners.
Mike
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Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes |
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07-17-2006, 10:38 AM
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Registered
Join Date: Aug 2005
Location: Albuquerque, NM
Posts: 261
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Funny you should ask this question because I have an answer. I just got done doing alot of research because mine had the same issues. It kinda grossed me out...like maybe oily fumes were entering the cab or something. Anyway, I contacted a couple people in the customizing and repair industry for Porsche's. It is apparently an out-gassing of the chemicals in the Vinyl. It happens in almost every kind of mid year porsche.
After I tinted my windows it stopped happening. It has nothing to do with driving with your windows down. In fact if you keep them up it will happen regularly, every couple of days like you mentioned.
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Come check out my new stuff....you know you want to. www.myspace.com/elu Elu - the sensual nature of humanity Available on Eroica Records The new album is now available. |
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07-17-2006, 12:59 PM
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1970 Porsche 911 t 2.2 
1976 Porsche 911
