all it should/could have been - and the 3.8 is one of Ford's poorer
motors. That said, it's still a whole lot better than anything "the
general" had to offer at the time - and with any maintenance it is
often good for close to 200000 miles. That engine suffered from
timing cover and intake manifold leads as well as the oil cooler
gasket problem - and if ANY antifreeze gets into the oil, stop right
there and don't spend another penny on it. Antifreeze takes the
bearings of THAT particular engine out in a jiffy - the engine starts
to knock and there is NOTHING that can be done about it short of
replacing the engine.
What kind of shape is the body in - and where are you located??
under warranty didn't last 50,000 km - when he tried to have it
rebuilt good mechanic found the block was out of true and could not
even be line bored. Threw it back together and traded it back in to
the selling dealer who also did the warranty repair - - -
To put it simply - which means not 100% accurate - cold 5w30 oil acts
like cold 5 weight oil, and hot 5w30 oil behaves like hot 30 weight
oil. Oil behaves like corn syrup or honey. The colder it gets the
thicker it gets.. The warmer it gets the thinner it gets.
The way it is done is using a thin base oil (like SAE5) and adding a
viscosity index improver - which is a long chain polymer that curls
and uncurls with temperature, thickening the oil as it warms up.
The hot 5w30 is still thinner than cold 5 weight oil - just not as
soften the rubber in seals and gaskets - which can effectively stop
some leaks - at least for a while. Second time 'round unlikely to be
anywhere near as effective. Some additives are really good for some
problems. This is one additive that is not much good for anything - in
my professional opinion.
I think it's a good idea to get under, and write the
oil change date on the oil filter, permanant marker.
That way you can tell if they did the work, by the
color of the oil and the date on the filter.
One friend of mine in South Carolina had one of those
oil non-changes. He wasn't pleased.
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