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3 speed Dodge Ram Van oil consumption



 
 
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  #41  
Old October 9th 04, 03:59 PM
mic canic
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you just migt have a blown intake plenuim gasket and it's sucking oil from the
lifter valley
a pinging assocated with this can confirm it's taking place

Matt Whiting wrote:

> Bob wrote:
>
> > "Matt Whiting" > wrote in message
> > ...
> >
> >>Bob wrote:
> >>
> >>
> >>>"Daniel J. Stern" > wrote in message
> ngin.umich.edu...
> >>>
> >>>
> >>>>On Thu, 7 Oct 2004, John Kunkel wrote:
> >>>>
> >>>>
> >>>>
> >>>>>>The engine speed is not connected with the oil consumption. If your
> >>>>>>engine "consumed" (or lost) 4 quarts of oil in 800 miles, you either
> >>>>>>have a whipped engine or a large leak.
> >>>>>
> >>>>>Disagree, many vans had ridiculously low axle ratios and the absence of
> >>>>>OD would have the motor running at 3500+ rpm's at freeway speeds. A
> >>>>>tired motor will suck more oil at 3500 than it will at 1800.
> >>>>
> >>>>...and a non-tired engine will use no more oil at 3500 than at 1800.
> >>>
> >>>
> >>>But it will "get" tired at least twice as fast
> >>
> >>Not necessarily.
> >>
> >>
> >>Matt
> >>

> >
> >
> > If everything else is equal it certainly well.

>
> Everything else isn't even close to equal. It is pretty well documented
> that most wear occurs during startup, especially when the engine is
> cold. Running at twice the RPM doesn't yield even close to twice the
> rate of wear. The difference, in fact, may be virtually negligible.
> Cars that are run long periods at a time and not started all that often,
> especially cold starts, tend to have engines that last a LOT longer.
>
> Matt


Ads
  #42  
Old October 9th 04, 04:06 PM
maxpower
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ok i read it wrong, i stand corrected
"Bill Putney" > wrote in message
...
> maxpower wrote:
>
> > you said>>>>The engine speed is not connected with the oil consumption.

If
> > your
> >
> >>>>>>>engine "consumed" (or lost) 4 quarts of oil in 800 miles, you

either
> >>>>>>>have a whipped engine or a large leak.

> >
> > Either I missed the first thread or the engine size was never posted.

>
> Ah - on second reading, I see the problem. Some of the attributions got
> stripped out as the thread progressed. What you quoted above are not my
> words - they are Daniel Stern's. Not saying I agree or disagree, but
> those are not my words. (This is not the same as saying "I voted for
> the appropriations before I voted against them".) 8^)
>
> Bill Putney
> (To reply by e-mail, replace the last letter of the alphabet in my
> adddress with the letter 'x')
>
>
> ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet

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  #43  
Old October 9th 04, 04:06 PM
maxpower
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ok i read it wrong, i stand corrected
"Bill Putney" > wrote in message
...
> maxpower wrote:
>
> > you said>>>>The engine speed is not connected with the oil consumption.

If
> > your
> >
> >>>>>>>engine "consumed" (or lost) 4 quarts of oil in 800 miles, you

either
> >>>>>>>have a whipped engine or a large leak.

> >
> > Either I missed the first thread or the engine size was never posted.

>
> Ah - on second reading, I see the problem. Some of the attributions got
> stripped out as the thread progressed. What you quoted above are not my
> words - they are Daniel Stern's. Not saying I agree or disagree, but
> those are not my words. (This is not the same as saying "I voted for
> the appropriations before I voted against them".) 8^)
>
> Bill Putney
> (To reply by e-mail, replace the last letter of the alphabet in my
> adddress with the letter 'x')
>
>
> ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet

News==----
> http://www.newsfeeds.com The #1 Newsgroup Service in the World! >100,000

Newsgroups
> ---= East/West-Coast Server Farms - Total Privacy via Encryption =---



  #44  
Old October 9th 04, 05:46 PM
John Kunkel
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"Bill Putney" > wrote in message
...
> John Kunkel wrote:
> > "Daniel J. Stern" > wrote in message
> > n.umich.edu...
> >
> >>On Thu, 7 Oct 2004, John Kunkel wrote:
> >>
> >>
> >>>>The engine speed is not connected with the oil consumption. If your
> >>>>engine "consumed" (or lost) 4 quarts of oil in 800 miles, you either
> >>>>have a whipped engine or a large leak.
> >>>
> >>>Disagree, many vans had ridiculously low axle ratios and the absence of
> >>>OD would have the motor running at 3500+ rpm's at freeway speeds. A
> >>>tired motor will suck more oil at 3500 than it will at 1800.
> >>
> >>...and a non-tired engine will use no more oil at 3500 than at 1800.

> >
> >
> > Blanket statements like "The engine speed is not connected with the oil
> > consumption." invite disagreement.
> > If the engine consumes a certain quantity of oil on each full combustion
> > cycle, the consumption will increase with engine speed simply because

there
> > are more cycles per minute.

>
> Going with what you just said, that would mean that oil consumption on a
> given engine would be the same amount per mile regardless of speed. IOW
> - if you make a 400 mile trip on straight and level hiway, you might
> make it in 10 hours or in 5 hours depending on whether you drove 40 or
> 80 mph. But, from your statement, you would use the exact same amount
> of oil for that 400 mile trip (i.e., oil consumption would be have the
> same per thousnad mile rate). Not saying I agree or disagree with your
> conclusions - just want to be sure you understand the end result of what
> you're saying.


Suppose an engine consumes one microgram of oil on each full combustion
cycle (two revolutions), at 3500 rpm it would consume 1750 micrograms per
minute but at 1800 rpm it would only consume 900 micrograms per minute.
If a given vehicle is geared so that it turns 3500 rpms at a given road
speed it will consume more oil per mile than one geared to turn 1800 rpm at
the same road speed.
Therefore the statement "The engine speed is not connected with the oil
consumption.' is incorrect.


  #45  
Old October 9th 04, 05:46 PM
John Kunkel
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"Bill Putney" > wrote in message
...
> John Kunkel wrote:
> > "Daniel J. Stern" > wrote in message
> > n.umich.edu...
> >
> >>On Thu, 7 Oct 2004, John Kunkel wrote:
> >>
> >>
> >>>>The engine speed is not connected with the oil consumption. If your
> >>>>engine "consumed" (or lost) 4 quarts of oil in 800 miles, you either
> >>>>have a whipped engine or a large leak.
> >>>
> >>>Disagree, many vans had ridiculously low axle ratios and the absence of
> >>>OD would have the motor running at 3500+ rpm's at freeway speeds. A
> >>>tired motor will suck more oil at 3500 than it will at 1800.
> >>
> >>...and a non-tired engine will use no more oil at 3500 than at 1800.

> >
> >
> > Blanket statements like "The engine speed is not connected with the oil
> > consumption." invite disagreement.
> > If the engine consumes a certain quantity of oil on each full combustion
> > cycle, the consumption will increase with engine speed simply because

there
> > are more cycles per minute.

>
> Going with what you just said, that would mean that oil consumption on a
> given engine would be the same amount per mile regardless of speed. IOW
> - if you make a 400 mile trip on straight and level hiway, you might
> make it in 10 hours or in 5 hours depending on whether you drove 40 or
> 80 mph. But, from your statement, you would use the exact same amount
> of oil for that 400 mile trip (i.e., oil consumption would be have the
> same per thousnad mile rate). Not saying I agree or disagree with your
> conclusions - just want to be sure you understand the end result of what
> you're saying.


Suppose an engine consumes one microgram of oil on each full combustion
cycle (two revolutions), at 3500 rpm it would consume 1750 micrograms per
minute but at 1800 rpm it would only consume 900 micrograms per minute.
If a given vehicle is geared so that it turns 3500 rpms at a given road
speed it will consume more oil per mile than one geared to turn 1800 rpm at
the same road speed.
Therefore the statement "The engine speed is not connected with the oil
consumption.' is incorrect.


  #46  
Old October 9th 04, 06:03 PM
John Kunkel
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Posts: n/a
Default


"Anthony" > wrote in message
...
> >
> >

> A certian minute volume of oil is consumed each cycle due to the surface
> finish on the cylinder wall. It is designed that way. (Ring
> lubrication).


Depends on what you call "minute", many engines in good condition go 5000+
miles with no discernible consumption as gauged by the dipstick.

In high school auto shop I attained the Hasting Piston Rings "Doctor of
Motors" certificate (I know, big deal). The training taught that proper
cylinder/ring lubrication can be attained with no loss of the lubricant.

The phenomenon was illustrated by placing a hankerchief over a silver dollar
and placing a lit cigarette (gasp) on the hankerchief. Other than a brown
smudge, the hankerchief is not burned because the coin absorbs the heat;
same thing happens in the combustion chamber, the heat of combustion passes
through the microscopic film of oil without burning it away and is absorbed
by the mass of the cylinder wall.

If not for this phenomenon, the oil on the part of the cylinder wall exposed
to combustion heat would be burned away and there would be no lubrication
for the rings as the piston travels from BDC to TDC on the exhaust stroke;
ring life would be very short.


  #47  
Old October 9th 04, 06:03 PM
John Kunkel
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Posts: n/a
Default


"Anthony" > wrote in message
...
> >
> >

> A certian minute volume of oil is consumed each cycle due to the surface
> finish on the cylinder wall. It is designed that way. (Ring
> lubrication).


Depends on what you call "minute", many engines in good condition go 5000+
miles with no discernible consumption as gauged by the dipstick.

In high school auto shop I attained the Hasting Piston Rings "Doctor of
Motors" certificate (I know, big deal). The training taught that proper
cylinder/ring lubrication can be attained with no loss of the lubricant.

The phenomenon was illustrated by placing a hankerchief over a silver dollar
and placing a lit cigarette (gasp) on the hankerchief. Other than a brown
smudge, the hankerchief is not burned because the coin absorbs the heat;
same thing happens in the combustion chamber, the heat of combustion passes
through the microscopic film of oil without burning it away and is absorbed
by the mass of the cylinder wall.

If not for this phenomenon, the oil on the part of the cylinder wall exposed
to combustion heat would be burned away and there would be no lubrication
for the rings as the piston travels from BDC to TDC on the exhaust stroke;
ring life would be very short.


  #48  
Old October 9th 04, 06:28 PM
Daniel J. Stern
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Posts: n/a
Default


> the statement "The engine speed is not connected with the oil
> consumption.' is incorrect.


What I intended with that statement was to refute the original poster's
implicit claim that his oil consumption was so high *because* of what he
perceives as his engine's inappropriately-high operating speed on the
highway.


  #49  
Old October 9th 04, 06:28 PM
Daniel J. Stern
external usenet poster
 
Posts: n/a
Default


> the statement "The engine speed is not connected with the oil
> consumption.' is incorrect.


What I intended with that statement was to refute the original poster's
implicit claim that his oil consumption was so high *because* of what he
perceives as his engine's inappropriately-high operating speed on the
highway.


  #50  
Old October 9th 04, 07:27 PM
Anthony
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"John Kunkel" > wrote in
news:gRU9d.217774$D%.77477@attbi_s51:

>
> "Anthony" > wrote in message
> ...
>> >
>> >

>> A certian minute volume of oil is consumed each cycle due to the
>> surface finish on the cylinder wall. It is designed that way. (Ring
>> lubrication).

>
> Depends on what you call "minute", many engines in good condition go
> 5000+ miles with no discernible consumption as gauged by the dipstick.
>
> In high school auto shop I attained the Hasting Piston Rings "Doctor
> of Motors" certificate (I know, big deal). The training taught that
> proper cylinder/ring lubrication can be attained with no loss of the
> lubricant.
>
> The phenomenon was illustrated by placing a hankerchief over a silver
> dollar and placing a lit cigarette (gasp) on the hankerchief. Other
> than a brown smudge, the hankerchief is not burned because the coin
> absorbs the heat; same thing happens in the combustion chamber, the
> heat of combustion passes through the microscopic film of oil without
> burning it away and is absorbed by the mass of the cylinder wall.
>
> If not for this phenomenon, the oil on the part of the cylinder wall
> exposed to combustion heat would be burned away and there would be no
> lubrication for the rings as the piston travels from BDC to TDC on the
> exhaust stroke; ring life would be very short.
>
>
>



By minute, I meant an extremely small amount. There is *some* oil burned,
but you would probably need some pretty sensitive scientific instruments
to detect it.


--
Anthony

You can't 'idiot proof' anything....every time you try, they just make
better idiots.

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