Re: Determining oil change intervals via analysis
 

Stubby wrote:

> Matt Whiting wrote:
>
>> jim beam wrote:
>>
>>> rmac wrote:
>>>
>>>> "dbltap" <DoubleTap@37.com> wrote in message
>>>> news:1ucAg.2477$xp2.1947@newsread1.news.pas.earthl ink.net...
>>>>
>>>>> http://www.autoblog.com/2006/08/02/d...-via-analysis/
>>>>>
>>>>
>>>>
>>>> Interesting how some people spend $30 for an oil analysis in order
>>>> to avoid a $20 oil change. hmmmm.
>>>>
>>> you're not "avoiding an oil change", you're getting a checkup on the
>>> health of the engine. chemical content tells you a lot about how the
>>> motor is running, too hot, too cold, contamination, wear, imminent
>>> failures, etc. if you could predict whether the motor was going to
>>> fail in the next 6 months, and you were planning a major road trip,
>>> would you just go anyway and get the car fixed along the way, or
>>> would you get it done now while you have the time and resources to do
>>> the job properly? you don't wait for a plane's engine to fail in
>>> flight [if you can avoid it!] do you?
>>
>>
>> With a car, sure I'd just keep on driving it. Oil analysis can't
>> predict with any certainty when an engine will fail. In a airplane,
>> I'd have it torn down and inspected. However, this is much easier
>> than with most cars. A good aircraft mechanic can rebuild the top end
>> of an airplane engine in the time the car mechanic is getting the
>> accessories removed from a modern car.
>
>
> To rebuild a small airplane engine costs about $20,000 and takes months.
> You don't want to do it unless you have good evidence that it is needed.

I was talking a top-end. That can be done in two days tops. And a full
overhaul doesn't take months. Where'd you get that? A good mechanic do
do that in 3 days. And many folks get a factory reman and that takes
about two days to do the engine swap.

Matt

Re: Determining oil change intervals via analysis
 

"Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
> To rebuild a small airplane engine costs about $20,000 and takes months.
> You don't want to do it unless you have good evidence that it is needed.

I was of the impression that a major overhaul was mandated at so many hours
running time.. Was it 5,000 hours, or more?

Re: Determining oil change intervals via analysis
 

"Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
> To rebuild a small airplane engine costs about $20,000 and takes months.
> You don't want to do it unless you have good evidence that it is needed.

I was of the impression that a major overhaul was mandated at so many hours
running time.. Was it 5,000 hours, or more?

Re: Determining oil change intervals via analysis
 

"Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
> To rebuild a small airplane engine costs about $20,000 and takes months.
> You don't want to do it unless you have good evidence that it is needed.

I was of the impression that a major overhaul was mandated at so many hours
running time.. Was it 5,000 hours, or more?

Re: Determining oil change intervals via analysis
 

HLS@nospam.nix wrote:
> "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
>> To rebuild a small airplane engine costs about $20,000 and takes months.
>> You don't want to do it unless you have good evidence that it is needed.
>
> I was of the impression that a major overhaul was mandated at so many hours
> running time.. Was it 5,000 hours, or more?
>
2000 hours is a typical number. But so what? I would certainly have
an oil test done within the first hour on a new or rebuilt engine.

Re: Determining oil change intervals via analysis
 

HLS@nospam.nix wrote:
> "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
>> To rebuild a small airplane engine costs about $20,000 and takes months.
>> You don't want to do it unless you have good evidence that it is needed.
>
> I was of the impression that a major overhaul was mandated at so many hours
> running time.. Was it 5,000 hours, or more?
>
2000 hours is a typical number. But so what? I would certainly have
an oil test done within the first hour on a new or rebuilt engine.

Re: Determining oil change intervals via analysis
 

HLS@nospam.nix wrote:
> "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
>> To rebuild a small airplane engine costs about $20,000 and takes months.
>> You don't want to do it unless you have good evidence that it is needed.
>
> I was of the impression that a major overhaul was mandated at so many hours
> running time.. Was it 5,000 hours, or more?
>
2000 hours is a typical number. But so what? I would certainly have
an oil test done within the first hour on a new or rebuilt engine.

Re: Determining oil change intervals via analysis
 

"Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
news:X4ydnS1waLI0D0_ZnZ2dnUVZ_rGdnZ2d@comcast.com. ..
> HLS@nospam.nix wrote:
> > "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
> >> To rebuild a small airplane engine costs about $20,000 and takes
months.
> >> You don't want to do it unless you have good evidence that it is
needed.
> >
> > I was of the impression that a major overhaul was mandated at so many
hours
> > running time.. Was it 5,000 hours, or more?
> >
> 2000 hours is a typical number. But so what? I would certainly have
> an oil test done within the first hour on a new or rebuilt engine.

I am sure you would.

Re: Determining oil change intervals via analysis
 

"Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
news:X4ydnS1waLI0D0_ZnZ2dnUVZ_rGdnZ2d@comcast.com. ..
> HLS@nospam.nix wrote:
> > "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
> >> To rebuild a small airplane engine costs about $20,000 and takes
months.
> >> You don't want to do it unless you have good evidence that it is
needed.
> >
> > I was of the impression that a major overhaul was mandated at so many
hours
> > running time.. Was it 5,000 hours, or more?
> >
> 2000 hours is a typical number. But so what? I would certainly have
> an oil test done within the first hour on a new or rebuilt engine.

I am sure you would.

Re: Determining oil change intervals via analysis
 

"Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
news:X4ydnS1waLI0D0_ZnZ2dnUVZ_rGdnZ2d@comcast.com. ..
> HLS@nospam.nix wrote:
> > "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
> >> To rebuild a small airplane engine costs about $20,000 and takes
months.
> >> You don't want to do it unless you have good evidence that it is
needed.
> >
> > I was of the impression that a major overhaul was mandated at so many
hours
> > running time.. Was it 5,000 hours, or more?
> >
> 2000 hours is a typical number. But so what? I would certainly have
> an oil test done within the first hour on a new or rebuilt engine.

I am sure you would.

Re: Determining oil change intervals via analysis
 

HLS@nospam.nix wrote:

> "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
>
>>To rebuild a small airplane engine costs about $20,000 and takes months.
>> You don't want to do it unless you have good evidence that it is needed.
>
>
> I was of the impression that a major overhaul was mandated at so many hours
> running time.. Was it 5,000 hours, or more?

Only if the aircraft is used commercially. The typical TBOs are 1500 -
2000 hours.

Matt

Re: Determining oil change intervals via analysis
 

HLS@nospam.nix wrote:

> "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
>
>>To rebuild a small airplane engine costs about $20,000 and takes months.
>> You don't want to do it unless you have good evidence that it is needed.
>
>
> I was of the impression that a major overhaul was mandated at so many hours
> running time.. Was it 5,000 hours, or more?

Only if the aircraft is used commercially. The typical TBOs are 1500 -
2000 hours.

Matt

Re: Determining oil change intervals via analysis
 

HLS@nospam.nix wrote:

> "Stubby" <William.Plummer-NOSPAM-@alum.mit.edu> wrote in message
>
>>To rebuild a small airplane engine costs about $20,000 and takes months.
>> You don't want to do it unless you have good evidence that it is needed.
>
>
> I was of the impression that a major overhaul was mandated at so many hours
> running time.. Was it 5,000 hours, or more?

Only if the aircraft is used commercially. The typical TBOs are 1500 -
2000 hours.

Matt

Re: Determining oil change intervals via analysis
 

On Thu, 03 Aug 2006 16:50:02 GMT, Brian Nystrom
<brian.nystrom@verizon.net> wrote:

>HLS@nospam.nix wrote:
>> "jim beam" <nospam@example.net> wrote in message
>> news:ctmdnT5DGZCWZ0zZnZ2dnUVZ_uidnZ2d@speakeasy.ne t...
>>
>>>HLS@nospam.nix wrote:
>>>
>>>>"Brian Nystrom" <brian.nystrom@verizon.net> wrote in message
>>>>news:UglAg.14167$Ju.1048@trndny09...
>>>> hmmmm.
>>>>
>>>>>Probably the biggest benefit of UOA is that it proves to people that
>>>>>oils last much longer than many of them think. With any kind of luck,
>>
>> it
>>
>>>>>will convince people once and for all that changing your oil any more
>>>>>frequently than the car manufacturer recommends is an unnecessary waste
>>>>>of a diminishing resource. Any money saved is a secondary benefit.
>>>>
>>>>Actually, it doesn't prove that at all.
>>>>
>>>>
>>>
>>>er, actually, yes it does.
>>
>>
>> If it proves it to you, that is fair enough. What is your background of
>> expertise in
>> this subject?
>>
>> But it doesnt prove it to me.
>
>Well, perhaps you regard ignorance and stubborness as virtues, but I
>don't. It never ceases to amaze me that people can look at scientific
>data that refutes their beliefs and just dismiss it because they don't
>like it. It takes all kinds, I guess...

Faith based car maintenance?

Re: Determining oil change intervals via analysis
 

On Thu, 03 Aug 2006 16:50:02 GMT, Brian Nystrom
<brian.nystrom@verizon.net> wrote:

>HLS@nospam.nix wrote:
>> "jim beam" <nospam@example.net> wrote in message
>> news:ctmdnT5DGZCWZ0zZnZ2dnUVZ_uidnZ2d@speakeasy.ne t...
>>
>>>HLS@nospam.nix wrote:
>>>
>>>>"Brian Nystrom" <brian.nystrom@verizon.net> wrote in message
>>>>news:UglAg.14167$Ju.1048@trndny09...
>>>> hmmmm.
>>>>
>>>>>Probably the biggest benefit of UOA is that it proves to people that
>>>>>oils last much longer than many of them think. With any kind of luck,
>>
>> it
>>
>>>>>will convince people once and for all that changing your oil any more
>>>>>frequently than the car manufacturer recommends is an unnecessary waste
>>>>>of a diminishing resource. Any money saved is a secondary benefit.
>>>>
>>>>Actually, it doesn't prove that at all.
>>>>
>>>>
>>>
>>>er, actually, yes it does.
>>
>>
>> If it proves it to you, that is fair enough. What is your background of
>> expertise in
>> this subject?
>>
>> But it doesnt prove it to me.
>
>Well, perhaps you regard ignorance and stubborness as virtues, but I
>don't. It never ceases to amaze me that people can look at scientific
>data that refutes their beliefs and just dismiss it because they don't
>like it. It takes all kinds, I guess...

Faith based car maintenance?