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Brian (September 27, 2011, 14:23:11 PM):
... I'm in the process of replacing the engine ... Will keep [the car] until I hit 1 million k's.


This might be an interesting question for the philosophers, but if you're replacing the engine, is it really the same car? Has the car really traveled 1 million k's? I think that if the Ship of Theseus had an engine, Plutarch might not have accepted it was the same ship once all the engine was replaced all at once. ;)

Reminds me of a Jimmy Carr joke:

Quote from: Jimmy Carr
I have filled-out an organ donor card. But I've added a condition, you know, I've just written it in biro on the back. It says they can have my organs when I die, just as long as they all go to the same person. That way, it's not so much a donation as a hostile takeover.


James


True enough....I've hit 1 million k's a long time ago...now have a steel knee inserted as well as C3 (neck vertebra) ;D Am I the same person? I have no fucking idea.
Zulumoose (September 27, 2011, 15:06:13 PM):
I have heard that you can drain the oil, fill with parafin, run until hot, drain and refill with oil again. That comes from one of the guys who do the Talk On Cars show on 702 and Cape Talk on Friday evenings.

I would be a bit wary of things like that. Firstly paraffin is more a fuel than a lubricant, and has a low boiling point and low ignition point compared to oil. Remember parts of your engine get way hotter than others, and oil is pumped to some of the hottest points, so there are multiple things that could potentially be happening that you don't want.

1) Boiling paraffin pushing vapours at high pressure into places they shouldn't be

2) Ignition danger

3) penetration of paraffin displacing oil in low circulation areas, causing wear damage

4) Paraffin remaining behind and mixing with new oil, reducing its lubrosity (right word?)

5) Paraffin taking sludge out of the filter and into engine cavities.

6) Dislodging large deposits but not breaking them up within the few minutes allowed, causing blockages.

When doing things like this it is better to think of the hippocratic oath, first do no harm. It is quite likely that things like this can do more harm than the minimal good that they achieve, wheras a double change of fresh oil can only be a good thing.
Tweefo (September 27, 2011, 18:58:39 PM):
... I'm in the process of replacing the engine ... Will keep [the car] until I hit 1 million k's.


This might be an interesting question for the philosophers, but if you're replacing the engine, is it really the same car? Has the car really traveled 1 million k's? I think that if the Ship of Theseus had an engine, Plutarch might not have accepted it was the same ship once all the engine was replaced all at once. ;)

Reminds me of a Jimmy Carr joke:

Quote from: Jimmy Carr
I have filled-out an organ donor card. But I've added a condition, you know, I've just written it in biro on the back. It says they can have my organs when I die, just as long as they all go to the same person. That way, it's not so much a donation as a hostile takeover.


James

I've got Jan van Riebeek's ax. The handle was replaced five times and the head twice....
st0nes (October 19, 2011, 11:18:23 AM):
I have heard that you can drain the oil, fill with parafin, run until hot, drain and refill with oil again. That comes from one of the guys who do the Talk On Cars show on 702 and Cape Talk on Friday evenings.


I would be a bit wary of things like that. Firstly paraffin is more a fuel than a lubricant, and has a low boiling point and low ignition point compared to oil. Remember parts of your engine get way hotter than others, and oil is pumped to some of the hottest points, so there are multiple things that could potentially be happening that you don't want.

1) Boiling paraffin pushing vapours at high pressure into places they shouldn't be

2) Ignition danger

3) penetration of paraffin displacing oil in low circulation areas, causing wear damage

4) Paraffin remaining behind and mixing with new oil, reducing its lubrosity (right word?)

5) Paraffin taking sludge out of the filter and into engine cavities.

6) Dislodging large deposits but not breaking them up within the few minutes allowed, causing blockages.

When doing things like this it is better to think of the hippocratic oath, first do no harm. It is quite likely that things like this can do more harm than the minimal good that they achieve, wheras a double change of fresh oil can only be a good thing.

They've just discussed it again on Word on Cars. You can download it from Capetalk. They address some of your objections. The discussion is about 37:40 into the show.
themyst1971 (October 22, 2011, 12:34:19 PM):
My last 4 cars I have sold and bought new ones every 4 years.

My first car was a Datsun 1979, my second was a mini panel van, 1969.

I know what it is like to drive old cars and I have nothing against that either.

My current car is about a year old and I love driving it. Everyone at work always laughs at me. If I hear someone is going somewhere during the day I offer to drive them, just so that i have an excuse to drive my car.

I am not sure I will upgrade any time soon. I swapped out every time I could until I found the perfect car, now I have it.

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