10-08-2006, 08:01 AM
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Junior Member
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Join Date: Oct 2006
Posts: 1
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Castrol vs Synthetic
Advise please,
I have bought a 1996 XJ6 Vanden Plas; previous owner used Castrol
motor oil.
My other non - Jag car runs on synthetic oil and I am thinking of
changing the Jag to synthetic oil at the next oil change.
But not knowing a lot about Jaguar enjines I will stay with Castrol if
advised to - what would the group recommend,?
Thanks for any advise given.
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10-08-2006, 09:04 AM
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Junior Member
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Join Date: Jan 2006
Posts: 4
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Castrol vs Synthetic
"TsimbaVarti" <boja_@hotmail.com> skrev i en meddelelse
news  m7ii2dkjqbk57b2s2p4mgelun19tun70g@4ax.com...
Quote:
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Advise please, I have bought a 1996 XJ6 Vanden Plas; previous owner used Castrol motor oil. My other non - Jag car runs on synthetic oil and I am thinking of changing the Jag to synthetic oil at the next oil change. But not knowing a lot about Jaguar enjines I will stay with Castrol if advised to - what would the group recommend,?
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I have the same plans for my XJ40 3.2 from 1992, so I am also interested.
Both cars have the AJ6 engine as far as I know.
I am running on a semisynthetic 10W-40 for the moment, but think that a
fully synthetic must be better, but probably not necesarry at all...
Leo
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10-08-2006, 03:10 PM
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Junior Member
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Join Date: Mar 2006
Posts: 13
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Castrol vs Synthetic
"Leo Jensen" <maigaard-jensen@slet.stofanet.dk> wrote in message
news:45292fa2$0$4156$ba624c82@nntp02.dk.telia.net. ..
Quote:
"TsimbaVarti" <boja_@hotmail.com> skrev i en meddelelse newsm7ii2dkjqbk57b2s2p4mgelun19tun70g@4ax.com...
Quote:
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Advise please, I have bought a 1996 XJ6 Vanden Plas; previous owner used Castrol motor oil. My other non - Jag car runs on synthetic oil and I am thinking of changing the Jag to synthetic oil at the next oil change. But not knowing a lot about Jaguar enjines I will stay with Castrol if advised to - what would the group recommend,?
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I have the same plans for my XJ40 3.2 from 1992, so I am also interested. Both cars have the AJ6 engine as far as I know. I am running on a semisynthetic 10W-40 for the moment, but think that a fully synthetic must be better, but probably not necesarry at all... Leo
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Twenty years ago there was a general warning around that stated you
shouldn't convert to synthetic oil if the car had more than 10,000 miles on
it, run on conventional oil. It was thought that synthetic oil would tend
to leak past seals worn in with regular oil. I hope someone has more
up-to-date information.
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10-09-2006, 09:34 AM
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Junior Member
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Join Date: Jan 2006
Posts: 4
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Castrol vs Synthetic
"wtrplnet" <wd12@YOUKNOWTHEDRILLexcite.com> skrev i en meddelelse
news:cumdna-0BN74GLTYnZ2dnUVZ_oednZ2d@comcast.com...
Quote:
"Leo Jensen" <maigaard-jensen@slet.stofanet.dk> wrote in message news:45292fa2$0$4156$ba624c82@nntp02.dk.telia.net. ..
Quote:
"TsimbaVarti" <boja_@hotmail.com> skrev i en meddelelse newsm7ii2dkjqbk57b2s2p4mgelun19tun70g@4ax.com...
Quote:
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Advise please, I have bought a 1996 XJ6 Vanden Plas; previous owner used Castrol motor oil. My other non - Jag car runs on synthetic oil and I am thinking of changing the Jag to synthetic oil at the next oil change. But not knowing a lot about Jaguar enjines I will stay with Castrol if advised to - what would the group recommend,?
|
I have the same plans for my XJ40 3.2 from 1992, so I am also interested. Both cars have the AJ6 engine as far as I know. I am running on a semisynthetic 10W-40 for the moment, but think that a fully synthetic must be better, but probably not necesarry at all... Leo
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Twenty years ago there was a general warning around that stated you shouldn't convert to synthetic oil if the car had more than 10,000 miles on it, run on conventional oil. It was thought that synthetic oil would tend to leak past seals worn in with regular oil. I hope someone has more up-to-date information.
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I hope you mean 100000 miles, after 10000 miles you have just finished
breaking in the engine...
If a synthetic oil has the viscosity prescribed for the engine, I don't see
why it should pass any seals that a conventional oil doesn'r pass ?
Leo
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10-09-2006, 12:17 PM
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Junior Member
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Join Date: Mar 2006
Posts: 13
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Castrol vs Synthetic
"Leo Jensen" <maigaard-jensen@slet.stofanet.dk> wrote in message
news:452a8841$0$4172$ba624c82@nntp02.dk.telia.net. ..
Quote:
"wtrplnet" <wd12@YOUKNOWTHEDRILLexcite.com> skrev i en meddelelse news:cumdna-0BN74GLTYnZ2dnUVZ_oednZ2d@comcast.com...
Quote:
"Leo Jensen" <maigaard-jensen@slet.stofanet.dk> wrote in message news:45292fa2$0$4156$ba624c82@nntp02.dk.telia.net. ..
Quote:
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"TsimbaVarti" <boja_@hotmail.com> skrev i en meddelelse newsm7ii2dkjqbk57b2s2p4mgelun19tun70g@4ax.com... > Advise please, > > I have bought a 1996 XJ6 Vanden Plas; previous owner used Castrol > motor oil. > > My other non - Jag car runs on synthetic oil and I am thinking of > changing the Jag to synthetic oil at the next oil change. > > But not knowing a lot about Jaguar enjines I will stay with Castrol
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if
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> advised to - what would the group recommend,? I have the same plans for my XJ40 3.2 from 1992, so I am also
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interested.
Quote:
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Both cars have the AJ6 engine as far as I know. I am running on a semisynthetic 10W-40 for the moment, but think that a fully synthetic must be better, but probably not necesarry at all... Leo Twenty years ago there was a general warning around that stated you shouldn't convert to synthetic oil if the car had more than 10,000 miles on it, run on conventional oil. It was thought that synthetic oil would
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tend
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to leak past seals worn in with regular oil. I hope someone has more up-to-date information. I hope you mean 100000 miles, after 10000 miles you have just finished breaking in the engine...
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Exactly the point.
Quote:
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If a synthetic oil has the viscosity prescribed for the engine, I don't
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see
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why it should pass any seals that a conventional oil doesn'r pass ? Leo
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10-09-2006, 05:48 PM
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Junior Member
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Join Date: Oct 2006
Posts: 1
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Castrol vs Synthetic
On Sun, 08 Oct 2006 09:01:27 -0700, TsimbaVarti <boja_@hotmail.com>
wrote:
Quote:
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Advise please,I have bought a 1996 XJ6 Vanden Plas; previous owner used Castrolmotor oil.My other non - Jag car runs on synthetic oil and I am thinking ofchanging the Jag to synthetic oil at the next oil change.But not knowing a lot about Jaguar enjines I will stay with Castrol ifadvised to - what would the group recommend,?Thanks for any advise given.
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Funny reverse saying I heard was that once you put a car on synthetic
oil you can't go back to a regular oil or it'l ruin your engine.
Are these "urban legends or really based on fact?
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