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Old Mar 24, 2013 | 08:36 AM
  #1  
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From: The Jersey Shore
Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
Milky Oil

What are the possible causes of milky oil? Yesterday I went to just check my oiland it was milky. Drained it out and kinda smelt like fuel, and seemed thin... (I think) Coolant is clean.

Checked my fuel pressure and it was 50 psi idle vacuum line off. So i figured maybe that can be the problem. So I tried lowering it with my crane AFPR but after more then enough 1/8 turns (cause there isnt much room) the pressure only dropped about 1 psi.... then i had to be somewhere and ran out of time...


any input/ opinions? all appreciated...
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Old Mar 24, 2013 | 09:10 AM
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insomniac's Avatar
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From: The Jersey Shore
Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
maybe it could be condensation? i move it about across the street and back everyday at work. short rides all winter...


Posted from Thirdgen.org App for Android
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Old Mar 24, 2013 | 09:33 AM
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From: Imperial, Missouri
Car: 89 IROC/89 Vert/87 Vert/89 GTA Vert
Engine: 5.7/5.0/5.0/5.7
Transmission: 700R4
Axle/Gears: 9" 2.77/9" 3:23/9" 3:42
Re: Milky Oil

Usually a blown head gasket can mix oil and antifreeze. It would look like coffee with tons of creamer in it. IF that is the case drain that oil quickly becasue oil and antifreeze form a chemical that is like an acid. That acid will start eating the metal and causing pits in the cylider walls and even the crank. Hopefully it is something else. Describe more of the color or the "milky oil".
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Old Mar 24, 2013 | 09:35 AM
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From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: Milky Oil

hopefully its just condensation.
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Old Mar 24, 2013 | 10:00 AM
  #5  
insomniac's Avatar
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From: The Jersey Shore
Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
Re: Milky Oil

Originally Posted by rarebmx
Usually a blown head gasket can mix oil and antifreeze. It would look like coffee with tons of creamer in it. IF that is the case drain that oil quickly becasue oil and antifreeze form a chemical that is like an acid. That acid will start eating the metal and causing pits in the cylider walls and even the crank. Hopefully it is something else. Describe more of the color or the "milky oil".

yeah kind of creamy like that, but the coolant level hasnt dropped a bit, and is as clean as can be....
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Old Mar 24, 2013 | 02:20 PM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Milky Oil

Originally Posted by insomniac
maybe it could be condensation? i move it about across the street and back everyday at work. short rides all winter...


Posted from Thirdgen.org App for Android
Short trips won't burn out all the condensation soo it'll build up and look like big problems.
If your worried about it, PSI check your coolant system, most parts stores have the tool 4 that.
Don't run it unless you can run it long enuff to burn that stuff out.
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Old Mar 24, 2013 | 02:26 PM
  #7  
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From: Garden Grove,Ca
Car: 92 RS
Engine: 5.slow
Transmission: 5speed
Re: Milky Oil

Sounds like condensation if you just drive it across the street and back every day.Definitely need to let it warm up.
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