Discussion:
Using synthetic oil
(too old to reply)
Jeff@unknown.com
2008-06-09 07:46:22 UTC
Permalink
I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350
cars. Is there a problem with using synthetic oil instead (at say Jiffy
lube or other non-Lexus garage) and extending the oil change period to 7,500
miles? Would that mess up the warranty?

Jeff
OldMan
2008-06-09 22:15:45 UTC
Permalink
I often wonder why US supplied cars have a much lower oil change interval,
as indicated by manufacturer, than those supplied in Europe.
That includes vehicles supplied with 3 year 90,000 warranty & those supplied
with unlimited milage in the 3 year period.
My last Lexus had a 9,000 miles interval, later models 10,000 / 20,000?
So far I have seen no explanation
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350
cars. Is there a problem with using synthetic oil instead (at say Jiffy
lube or other non-Lexus garage) and extending the oil change period to
7,500 miles? Would that mess up the warranty?
Jeff
Wayne
2008-06-09 22:26:29 UTC
Permalink
Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles
whichever comes first. They are the only synthetic oil that goes that
long. I been using it for many years in all my cars including both my
Lexus'es.

Wayne
Post by OldMan
I often wonder why US supplied cars have a much lower oil change interval,
as indicated by manufacturer, than those supplied in Europe.
That includes vehicles supplied with 3 year 90,000 warranty & those supplied
with unlimited milage in the 3 year period.
My last Lexus had a 9,000 miles interval, later models 10,000 / 20,000?
So far I have seen no explanation
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350
cars. Is there a problem with using synthetic oil instead (at say Jiffy
lube or other non-Lexus garage) and extending the oil change period to
7,500 miles? Would that mess up the warranty?
Jeff
Jeff@unknown.com
2008-06-10 13:33:23 UTC
Permalink
Yes, but my question is if doing so and lengthening the oil change interval
would invalidate the Lexus warranty.

Jeff
Post by Wayne
Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles
whichever comes first. They are the only synthetic oil that goes that
long. I been using it for many years in all my cars including both my
Lexus'es.
Wayne
Post by OldMan
I often wonder why US supplied cars have a much lower oil change
interval, as indicated by manufacturer, than those supplied in
Europe. That includes vehicles supplied with 3 year 90,000 warranty &
those
supplied with unlimited milage in the 3 year period.
My last Lexus had a 9,000 miles interval, later models 10,000 /
20,000? So far I have seen no explanation
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on
GS 350 cars. Is there a problem with using synthetic oil instead
(at say Jiffy lube or other non-Lexus garage) and extending the oil
change period to 7,500 miles? Would that mess up the warranty?
Jeff
Wayne
2008-06-11 19:43:56 UTC
Permalink
No! Amsoil far exceeds all car manufactures.

Wayne
Post by ***@unknown.com
Yes, but my question is if doing so and lengthening the oil change interval
would invalidate the Lexus warranty.
Jeff
Post by Wayne
Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles
whichever comes first. They are the only synthetic oil that goes that
long. I been using it for many years in all my cars including both my
Lexus'es.
Wayne
Post by OldMan
I often wonder why US supplied cars have a much lower oil change
interval, as indicated by manufacturer, than those supplied in
Europe. That includes vehicles supplied with 3 year 90,000 warranty &
those
supplied with unlimited milage in the 3 year period.
My last Lexus had a 9,000 miles interval, later models 10,000 /
20,000? So far I have seen no explanation
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on
GS 350 cars. Is there a problem with using synthetic oil instead
(at say Jiffy lube or other non-Lexus garage) and extending the oil
change period to 7,500 miles? Would that mess up the warranty?
Jeff
Ray O
2008-06-12 04:41:28 UTC
Permalink
Post by Wayne
No! Amsoil far exceeds all car manufactures.
Wayne
Only Amsoil oil of the proper viscosity meets API specification SM meets or
exceeds the automaker's specifications. If the oil does not meet API SM
specifications, then it does not meet the automaker's warranty requirements
for the engine and related systems. Also, the automaker's recommended
maintenance intervals need to be followed for warranty coverage.

Of course, if Wayne or Amsoil is going to provide warranty coverage for the
engine, then the vehicle owner can follow Amsoil's recommendations.
--
Ray O
(correct punctuation to reply)
Wayne
2008-06-15 00:29:21 UTC
Permalink
Amsoil will back up all their products. Remember the Magnuson-Moss Act?
I suggest that you do some research.

Wayne
Post by Ray O
Post by Wayne
No! Amsoil far exceeds all car manufactures.
Wayne
Only Amsoil oil of the proper viscosity meets API specification SM meets or
exceeds the automaker's specifications. If the oil does not meet API SM
specifications, then it does not meet the automaker's warranty requirements
for the engine and related systems. Also, the automaker's recommended
maintenance intervals need to be followed for warranty coverage.
Of course, if Wayne or Amsoil is going to provide warranty coverage for the
engine, then the vehicle owner can follow Amsoil's recommendations.
Wayne
2008-06-15 00:33:53 UTC
Permalink
Access to the complete Magnuson-Moss Act is available on the Internet by
key words Magnuson-Moss Act or Federal Trade Commission

Wayne
Wayne
2008-06-09 22:27:44 UTC
Permalink
Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles
whichever comes first. They are the only synthetic oil that goes that
long. I been using it for many years in all my cars including both my
Lexus'es.

Wayne
Post by OldMan
I often wonder why US supplied cars have a much lower oil change interval,
as indicated by manufacturer, than those supplied in Europe.
That includes vehicles supplied with 3 year 90,000 warranty & those supplied
with unlimited milage in the 3 year period.
My last Lexus had a 9,000 miles interval, later models 10,000 / 20,000?
So far I have seen no explanation
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350
cars. Is there a problem with using synthetic oil instead (at say Jiffy
lube or other non-Lexus garage) and extending the oil change period to
7,500 miles? Would that mess up the warranty?
Jeff
01dyna
2008-06-09 22:40:18 UTC
Permalink
On Mon, 09 Jun 2008 18:27:44 -0400, Wayne
Post by Wayne
Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles
whichever comes first. They are the only synthetic oil that goes that
long. I been using it for many years in all my cars including both my
Lexus'es.
Wayne
we read you the first time. ;-)
ACAR
2008-06-19 11:06:23 UTC
Permalink
Post by OldMan
I often wonder why US supplied cars have a much lower oil change interval,
as indicated by manufacturer, than those supplied in Europe.
That includes vehicles supplied with 3 year 90,000 warranty & those supplied
with unlimited milage in the 3 year period.
My last Lexus had a 9,000 miles interval, later models 10,000 / 20,000?
So far I have seen no explanation
Aren't they using synthetic oil in Europe?

Oil analysis posted at bobistheoilguy.com doesn't bode well for that
20,000 mile oil change interval.

Ray O
2008-06-10 04:33:51 UTC
Permalink
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350
cars. Is there a problem with using synthetic oil instead (at say Jiffy
lube or other non-Lexus garage) and extending the oil change period to
7,500 miles? Would that mess up the warranty?
Jeff
There is no problem with using synthetic motor oil as long as it meets
current API specification SM. Using motor oil that does not meet API SM or
extending the oil change period to 7,500 miles would only mess up the
warranty on your motor and emissions system, including the catalytic
converter, not the rest of the car, and only if the non-specified oil caused
a problem.
--
Ray O
(correct punctuation to reply)
Jeff@unknown.com
2008-06-10 13:36:15 UTC
Permalink
So, using and synthetic oil and lengthening the oil change period would set
me up for arguments should I later need to use the warranty for engine or
catalyst repairs......

Jeff
Post by Ray O
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on
GS 350 cars. Is there a problem with using synthetic oil instead
(at say Jiffy lube or other non-Lexus garage) and extending the oil
change period to 7,500 miles? Would that mess up the warranty?
Jeff
There is no problem with using synthetic motor oil as long as it meets
current API specification SM. Using motor oil that does not meet
API SM or extending the oil change period to 7,500 miles would only
mess up the warranty on your motor and emissions system, including
the catalytic converter, not the rest of the car, and only if the
non-specified oil caused a problem.
Ray O
2008-06-11 03:53:17 UTC
Permalink
Post by ***@unknown.com
So, using and synthetic oil and lengthening the oil change period would
set me up for arguments should I later need to use the warranty for engine
or catalyst repairs......
Jeff
Yes it would.
--
Ray O
(correct punctuation to reply)
OldMan
2008-06-11 22:55:00 UTC
Permalink
But why the difference in intervals for US & EU vehicles???
Post by Ray O
Post by ***@unknown.com
So, using and synthetic oil and lengthening the oil change period would
set me up for arguments should I later need to use the warranty for
engine or catalyst repairs......
Jeff
Yes it would.
--
Ray O
(correct punctuation to reply)
Ray O
2008-06-12 04:37:19 UTC
Permalink
Post by OldMan
But why the difference in intervals for US & EU vehicles???
I don't know, but since if the vehicle is operated in the U.S., then one
should follow the maintenance intervals for U.S. vehicles if one wishes to
have the factory warrant the vehicle in the U.S.
--
Ray O
(correct punctuation to reply)
Wayne
2008-06-15 00:24:50 UTC
Permalink
Because the US car manufactures and the oil companies want to sell more
oil! It's a known fact. The eu has always had longer oil drains then us
because they pay far more for their gas and oil.

Wayne
Post by OldMan
But why the difference in intervals for US & EU vehicles???
Post by Ray O
Post by ***@unknown.com
So, using and synthetic oil and lengthening the oil change period would
set me up for arguments should I later need to use the warranty for
engine or catalyst repairs......
Jeff
Yes it would.
--
Ray O
(correct punctuation to reply)
ACAR
2008-06-19 11:03:33 UTC
Permalink
Post by ***@unknown.com
I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350
cars. Is there a problem with using synthetic oil instead (at say Jiffy
lube or other non-Lexus garage) and extending the oil change period to 7,500
miles? Would that mess up the warranty?
Jeff
Mobil 1 Synthetic oil for the GS350 is all API SM rated so that's not
an issue. An engine oil related issue caused by using a 7500 change
interval with Mobil 1 is HIGHLY unlikely. My Toyota dealer sells Mobil
1 and they suggest a 7500 oil change interval. But if want zero risk,
change it every 5000.
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