According to the following article:
http://www.boston.com/cars/news/articles/2007/04/01/carmakers_increase_oil_chang
e_intervals/
In 2004, Toyota (Lexus) reduced the oil change interval from 7500
miles down to 5000 because of engine sludge concerns. Toyota first
blamed the owners forgetting to change oil (don't Lexus have reminder
lights?) and then it's more people driving under severe conditions.
And then the oil change interval got cut by Toyota while others
increased it. What gives?
(I believe Audi, BMW and Mercedes use high specification synthetic
oils (no Group III hydrocracked oils), and they go 10,000-20,000 miles
with no problems.)
W. Wells - 07 May 2008 11:31 GMT
I have my oil changed every 5000 miles. The service man always reminds me
that the oil looks so good he would wait to 7500 miles. (I have 45,000 miles
on my car)
> According to the following article:
>
[quoted text clipped - 10 lines]
> oils (no Group III hydrocracked oils), and they go 10,000-20,000 miles
> with no problems.)
mcbrue - 08 May 2008 05:20 GMT
Allmost all other cars have change intervals of 7500 or 10,000 miles.
Why not Lexus? Why can't Lexus go to 10,000 and specify the good
synthetic oils? Gee ... which Asian nation is it that thinks "Business
Is War"?
Enrique Quijano - 08 May 2008 19:41 GMT
Hello
5000 miles between oil changes is too short, specially on synthetic oil. I
change mine every 9.500 miles, 15.000 kilometers, and the oil comes out
clean. As I see it, Lexus are long lasting engines, probably in the
neighbourhood of half a million kilometers or more, around 350.000 miles,
and the benefits of short frequency oil changes, if any, would be longer
engine life, which you would reap , at normal yearly mileages, twenty years
down the line . It is simply not worth it, unless one intends to pass the
car on to your son or daughter.
A friend of mine owned a Toyota Avensis, a model just below the Camry, a mid
sized sedan. He never changed the oil in his car, he just topped it up
during 50.000 miles of hard driving in Germany. The engine , eventually,
blew itself to pieces. Between my misguided friend and a 5.000 mile interval
there must be a happy medium.
Anyone can give me a piece of advice on a good set of 235 -45-16 W tires
for my GS 430?
Thanks
mcbrue - 09 May 2008 00:02 GMT
Your car warranty or guarantee is voided if you do not change the oil
every 5000 miles! And that can be reallllllly serious if you have the
electronic stuff on your car like the radar packages. You really can
not afford to loose the guarantee and you must have an extended
warranty on the car to drive it over the 50,000 mile (83,333 Km)
guaranty period. It is all too easy to run up repair bills of 10% of
the car purchase price on these little goodies.
Elmo P. Shagnasty - 09 May 2008 00:10 GMT
In article
<886301ad-c0ab-46e3-b31e-9bfd988c8353@m3g2000hsc.googlegroups.com>,
> Your car warranty or guarantee is voided if you do not change the oil
> every 5000 miles! And that can be reallllllly serious if you have the
> electronic stuff on your car like the radar packages.
You really don't understand the warranty, do you.
Not changing the oil on schedule does not affect the warranty for the
radar components, for example.
Get a clue.
ACAR - 09 May 2008 23:15 GMT
On May 6, 10:16 pm, johngd...@hotmail.com wrote:
snip
> What gives?
>
> (I believe Audi, BMW and Mercedes use high specification synthetic
> oils (no Group III hydrocracked oils), and they go 10,000-20,000 miles
> with no problems.)
What gives is that Lexus does not specify synthetic oil. If you use
synthetic you can go at least 7500 miles between oil changes, more if
the miles are highway.
20,000 miles between oil changes? No oil filter that I know can last
that long. Have you seen any oil analysis results that indicate 20,000
miles is OK? I haven't. Most 10,000 mile oil analysis results clearly
show the oil is getting dirty but is OK for continued use. The only
guy I know who has a 300,000 mile engine changes his synthetic oil
every 3000 miles. I change my Mobil 1 5W30 every 7500 miles or so and
my 3.0L V6 is still running fine at 215,000 miles.
YMMV
Elmo P. Shagnasty - 10 May 2008 00:50 GMT
In article
<b3a3a091-8fa2-410c-bdaa-577a818c91fa@m44g2000hsc.googlegroups.com>,
> The only
> guy I know who has a 300,000 mile engine changes his synthetic oil
> every 3000 miles.
All those Hondas out there on the road, and you don't know anyone who
owns one?
Hell, with a 3000 mile interval, you can't tell the difference between
dino and pure synthetic.
Enrique Quijano - 10 May 2008 09:27 GMT
Anyone can give me a piece of advice on a good set of 235 -45-16 W tires
for my GS 430?
Thanks
Ray O - 10 May 2008 14:01 GMT
> Anyone can give me a piece of advice on a good set of 235 -45-16 W
> tires for my GS 430?
>
> Thanks
www.tirerack.com has reviews from people who have bought tires from them -
this is a good place to start your research.

Signature
Ray O
(correct punctuation to reply)
johngdole@hotmail.com - 17 May 2008 05:03 GMT
No, ACAR, no Toyota (or Lexus) can go above 5000 miles without an oil
change. Even if you use synthetic oil. The warranty is technically
void if you don't follow the recommended service schedule.
Mercedes has 20,000 mile intervals. BMW *only* up to 15,000 miles.
Where have you been hiding all these years?
> What gives is that Lexus does not specify synthetic oil. If you use
> synthetic you can go at least 7500 miles between oil changes, more if
[quoted text clipped - 9 lines]
>
> YMMV