Question about Cars & Trucks
Thick brown milky oil in motor not in radiator
Think you have a water in the oil problem, milky brown oil is the detergent additive in the oil reacting with moisture, have the cooling system pressure tested, looking towards head gasket
Posted on Dec 31, 2013
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Posted on Jan 02, 2017
Does the oil in the radiator look reddish? likely it does...You most likely have a failure inside the radiator where the trans cooler coil runs through it. Replace radiator and have trans fluid changed and flushed. If slipping continues trans will need a rebuild. (hope not)
Posted on Apr 01, 2009
It wasn't from adding too much coolant as it would go into the overflow. The problem is you either have a warped head or a bad head gasket.
The head gasket can go bad from age or from overheating. As long as the car was never overheated then it may be worth fixing depending on the rest of the history of the vehicle and the mileage.
You do not want to drive the car. It will just damage the engine more.
Posted on Jan 07, 2010
depends if you have a oil cooler that goes into the radiator could be just a bad radiator look to see if oil lines run back to motor look closely and follow the lines because you probably have lines that run to the transmission to
if u do have oil cooler lines have radiator checked out if radiator checks out ok or you don't have oil lines then yes it a bad head gasket either way i wouldn't recommend driving it in this condition because if you have oil in your coolant you have coolant in your oil and the coolant will break down the oil and will no longer be able to do it job same goes for oil in coolant oil in coolant will clog water passages what will eventually happen is motor wont be able to lubricate and cool it self and you seize the motor
if it does end up just being bad radiator when you replace it drain motor oil and filter refill with fresh oil drive it for a day or too and then drain oil and replace filter again also check to make sure there is no water in transmisson (assumeing it a automatic transmisson)you can tell that by pulling dip stick and looking at color of transmission it red your ok but if it pink drain and replace the fillter it it just slightly pink you should be ok with just one drain filter change and refill if it bright pink cross your fingers because water can ruin a auto transmission quickly do the drain and refill run car for 10-15 minutes and drain and refill transmission again reason for this is u still have about 4 to 5 quarts of tranny fluid that stays in torque converter when u drain your tranny fluid
Posted on Nov 22, 2010
SOURCE: light brown junk in radiator
I suspect you have a leaking cylinder head gasket, this would account for the gunk in the system. To confirm this is the problem have a shop that owns an exhaust gas analyzer put the probe in the coolant recovery or surge tank of the system and see if any combustion gases show up in the system with the car running, do the test both hot and cold engine states. You will be looking for hydrocarbons. No matter what the outcome you must have the system professionally flushes and clean uncontaminated coolant installed Ina proportion of 50/50 coolant to water mix.
Posted on Jul 12, 2012
SOURCE: milky sustance in radiator
S. Sly is right. You have motor oil in your water and it IS headgasket time. Mill the head and make it perfectly flat, again. About $50 as a machine shop operation, alone.
Posted on Mar 01, 2013
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