As a side note, I've had my valve covers off many
times in the last 30K miles, just to check rockers
and such. Absolutely NO sludge build up whatsoever.
Must be the Mobil1 oil and the 80 miles round trip
every day.
GS -
98 5.2L 5spd
mrdancer@camalott.com wrote:
> OK, just to add a little more water to the fire....
>
> Do we all remember "Basic Mechanics 101"? You know, the part where they
> talk about condensation building up inside the motor, and that you *really*
> need to get the motor warmed up and get the oil warmed up to thoroughly get
> rid of that condensation?
>
> This is why vehicles that take mostly short trips (<5 miles) have engines
> that give up the ghost a lot quicker. They don't fully "burn out" the
> condensation (or water vapor), thus leading to sludge build-up in the oil
> pan. The guys that have to drive 10+ miles to work every day (highway, not
> stop-n-go) will inherently have the longest lasting engines.
>
> What does this mean? In practicality, it probably means those of you with
> 4.7L engines will probably have to drive 15 miles to burn out the water as
> opposed to the 10 miles for us 5.2L guys (I just pulled those numbers out of
> my butt to make an illustration, btw).
>
> Question: For those of you who have a lot of sludge build-up in your filler
> tube, do you make mostly short trips around town? For those of you with no
> sludge build-up, what is your average length of trip? Maybe we can figure
> out how far you have to drive before that H2O gets burned up......
> - --
> '92 Dak CC 2wd 318 3.55
> '84 GoldWing Interstate
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