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Discussion Starter · #1 ·
For many years I and most others here have heard about condensation
build up in engines. Is that more related to frequent use of the car or
does it make a difference if the car just sets. ??
 
G

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Discussion Starter · #2 ·
Moisture is in air , moisture could build up if motor is driven short
trips in winter and never warms fully , like 5 minute trips. Running a
motor for longer periods minimum 15 starts to get added moisture out of
it. Letting something sit has alot of negative effects on everything,
Drive it.
 
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Discussion Starter · #3 ·
"m Ransley" <[email protected]> wrote in message
news:[email protected]
> Moisture is in air , moisture could build up if motor is driven short
> trips in winter and never warms fully , like 5 minute trips. Running a
> motor for longer periods minimum 15 starts to get added moisture out of
> it. Letting something sit has alot of negative effects on everything,
> Drive it.


That's true. Once repeated short runs have occured enough,..the moisture
build-up inside the engine will turn to steam the first time the car goes on
a decent run. As this steam rises to the cam-cover, it condenses on the
cooler metal forming a sludge with any oil upthere. If the car does a long
trip,,the water vapour (steam) will escape thru the PCV system as the
cam-cover is up to full temp.

If there isa slow coolant leak from the headgasket for example or you live
in a high rain area (with high humidity), the whole process will be more
vigorous with a lot of watery-sludge forming in the over-head gear.

Jason
 
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Discussion Starter · #4 ·
Thats why short trip winter driving oil change intervals are recommended
to be made short, it ruins oil in a few thousand miles, and your motor.
You go to buy an old car and the owner states its changed every 3000,
but its trashed with sludge from short trips.
 
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