From: Steve on
SMS wrote:

> Alway a pet peeve that the manufacturers don't put in some sort of an
> audible warning of when to pull over and stop the vehicle.

My wife's 93 Eagle (Chrysler) does exactly that and it saved the engine
at least once. I'd replaced the timing belt and waterpump at 90k miles
(100k interval on the belt) and the replacement waterpump was a dud- the
pulley came off the shaft, wedged against the timing cover, and the
engine overheated. She heard the "ding ding ding" sound, saw the "check
gauges" light, and noticed the temp gauge headed for the red. She let it
cool a bit then got it the remaining half mile home. I finally figured
out what was wrong by the smell of burning timing belt as it rubbed
against the locked waterpump pulley, and no damage was done other than
me having to do a second timing belt and waterpump (from a different
parts store) in less than 10k miles. In fact we're in the process of
cleaning that car out to (probably) donate it to a charity. 256,000
miles, never had the engine open at all (3.5L v6, first-gen iron block
version). I'll miss it a lot, but its time. It doesn't owe me a thing.




From: Steve on
jim wrote:
>

>>> -jim
>> Like everything, its a trade-off. If every car owner went to a 6000-mile
>> versus the ridiculously short 3000 mile change interval, the savings in
>> crude oil or natural gas (the raw material for synthetic oils), the
>> reduction in energy required to produce the oil, and the reduced load on
>> the recycling infrastructure would be non-negligible.
>
> Just simply conserving by doing any number of things would have a far far
> greater impact. But nothing gets the people who are pretty much careless in
> conserving in almost every other respect so riled up as finding out someone is
> changing oil at 3000 miles.
>
> -jim

Oh, it doesn't rile me. Just pointing out one line of reasoning.
Outlawing daytime running lights would probably save a similar amount of
energy each year and I'd heartily approve. So would lowering speed
limits, but I'm ABSOLUTELY against doing that. Everyone has their own
idea of what should be conserved, and it usually involves things that
annoy us anyway.

Besides, more recycled oil means more fuel for the excursion railways'
oil-fired steam locomotives to burn :-)

From: Scott Dorsey on
SMS <scharf.steven(a)geemail.com> wrote:
>
>They're wasting an enormous amount of money, time, and resources on
>something that will provide absolutely no benefit in terms of the
>longevity of their vehicle. Ask them why they don't do 1000 mile oil
>changes rather than 3000?

The severe use maintenance schedule in the owner's manual says 3000
miles. So I do that.

If it said 1000 miles, I'd do that, sure.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
From: SMS on
jim wrote:

>> Like everything, its a trade-off. If every car owner went to a 6000-mile
>> versus the ridiculously short 3000 mile change interval, the savings in
>> crude oil or natural gas (the raw material for synthetic oils), the
>> reduction in energy required to produce the oil, and the reduced load on
>> the recycling infrastructure would be non-negligible.
>
> Just simply conserving by doing any number of things would have a far far
> greater impact. But nothing gets the people who are pretty much careless in
> conserving in almost every other respect so riled up as finding out someone is
> changing oil at 3000 miles.

But it's not either-or. Certainly keeping tires inflated properly,
removing roof racks, etc., would also help conserve resources, but it's
not like you can't do these things _AND_ not change your oil
ridiculously often.

It's basically a matter of education of vehicle owners to counter the
advertising of places like Jiffy Lube, as well as educating them as to
_why_ 3000 mile oil changes were a good idea 30 years ago, but no longer
provide any benefit over following the manufacturer's specifications.
They think that if the manufacturer says 5000 miles then 3000 miles
changes will somehow make the vehicle last longer or run better, when in
fact this is not the case. Alas, myths die hard. You can have every
mechanic in the country explain the reality, and someone will insist
that the mechanics just want engines to fail sooner so they can make
more money on engine repairs. You can have independent organizations
with no vested interest do extensive testing and analysis, and someone
will insist that the tests simply must be bogus for any number of
imagined reasons.

Maybe the solution needs to be what's done in some European countries,
where motor oil is heavily taxed and very expensive. It oil were $8 a
quart instead o
From: jim on


SMS wrote:
>
> jim wrote:
>
> >> Like everything, its a trade-off. If every car owner went to a 6000-mile
> >> versus the ridiculously short 3000 mile change interval, the savings in
> >> crude oil or natural gas (the raw material for synthetic oils), the
> >> reduction in energy required to produce the oil, and the reduced load on
> >> the recycling infrastructure would be non-negligible.
> >
> > Just simply conserving by doing any number of things would have a far far
> > greater impact. But nothing gets the people who are pretty much careless in
> > conserving in almost every other respect so riled up as finding out someone is
> > changing oil at 3000 miles.
>
> But it's not either-or. Certainly keeping tires inflated properly,
> removing roof racks, etc., would also help conserve resources, but it's
> not like you can't do these things _AND_ not change your oil
> ridiculously often.
>
> It's basically a matter of education of vehicle owners to counter the
> advertising of places like Jiffy Lube, as well as educating them as to
> _why_ 3000 mile oil changes were a good idea 30 years ago, but no longer
> provide any benefit over following the manufacturer's specifications.
> They think that if the manufacturer says 5000 miles then 3000 miles
> changes will somehow make the vehicle last longer or run better, when in
> fact this is not the case.

People put pin stripes on their cars also. It doesn't make their car run
better or last longer. Why doesn't anyone rant about that for a while?

The fact is if you have 2 engines with 150000 miles and one has had 3000
mile oil changes and one has had 6000 mile oil changes you can tell the
difference if you look on the inside of the engine. That does not mean one
is going to last longer or one will run better, but you can tell the
difference.

Some people wash there car regularly some people don't.

Some people have a life. Others don't, so they spend their time worrying
about how often other people change their oil or what filter they use.

-jim


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