Fuel and Engines
Antifreeze and Engine Coolant
Air Filters and Intake Manifolds

Can there be an antifreeze leak from the intake manifold but not any antifreeze mixed in with the engine oil?


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2015-07-15 18:43:28
2015-07-15 18:43:28

there can be a leak from the intake manifold without any antifreeze mixing with your oil, i personally experienced this problem on a 1986 sentra after a changed the head gasket, i apparently had scaped a little to hard on the intake when cleaning it for new gaskets. if its a small leak it would probably just be evaporating in the combustion chamber, but it can and probably will become a problem that needs attention quickly. have a trusted mechanic take a look at it as soon as possible, maybe have them do a compression check to see if there are any possible leaks. well good luck


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I guess your question is, Why is there water/engine coolant mixed with the engine oil. It is the most COMMON problem with the Vortec engines.The intake gasket is broken and allowing antifreeze to mix with the engine oil.YOU MUST REPLACE THE INTAKE GASKET. and be sure to FLUSH / change the engine oil and filter several times.Antifreeze will transc the engine bearings like NOW. If You Are LUCKY you may have found your problem early enough and not hurt the engine yet.

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Antifreeze, or engine coolant, is a liquid used to transport heat away from an engine. Antifreeze is mixed with water to lower the freezing point of the liquid to protect components in cold temperatures.

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In a vehicle engine cooling system : ( DISTILLED WATER is PREFERRED ) Usually mixed 50 / 50 with antifreeze , Ford states not to exceed 60 % antifreeze in the mix

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Yes, Ethylene glycol and Propylene glycol are very similar chemically, therefore, can be mixed without any bad consequences for the engine.

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