On May 6, 10:16=A0pm, johngd...@[EMAIL PROTECTED]
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
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