Re: Engines that are prone to sludge

The 7500 mile interval is not correct. In 2004 Toyota has lowered that
interval down to 5000 for ALL Toyota/Lexus engines while GM and Honda
pushed it to 12,000 miles during this period.

IIRC Audi has 10,000 mile intervals, BMW 15,000 miles, ****sche and
Mercedes 20,000 miles, but these use synthetic oil meeting strict
specifications (VW 502.00/505.01, BMW LL01/04, MB 229.5/229.51).

Therefore I think the sludge tendency is still there with all new
Toyota/Lexus engines, that's why you have to change oil at 5000
miles.

http://www.boston.com/cars/news/articles/2007/04/01/carmakers_increase_oil_=
change_intervals/



On Jul 24, 8:59=A0pm, Built_Well <Built_Well_Toy...@[EMAIL PROTECTED]
> wrote:
> For Lexus/Toyota:
>
> 2.2 L 4-cylinder ( 5S-FE )
>
> Models and years:
>
> 1997-2001 Camry
> 1997-2001 Solara
> 1997-1999 Celica
>
> New Warranty Coverage: 8 years / unlimited mileage.
>
> Oil drain intervals for warranty coverage:
>
> 5,000 miles/four months (severe)
> 7,500 miles (normal)
>
> ^^^^^^^^^^^^^^^^^^^
>
> There's a second engine for Lexus/Toyota:
>
> 3.0 L V6 ( 1MZ ) [Actually "IMZ" appears, but the "I"
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 must be a misprint. =A0It's gotta be
=
1MZ.]
>
> Models and years:
>
> 1997-2002 Camry
> 1999-2002 Solara
> 1998-2002 Sienna
> 1997-2002 Avalon
> 2001-2002 Highlander
>
> Same warranty coverage and oil drain intervals as the first
> Toyota engine above.
>
> Sidenote: The 3.0 Liter V6 1MZ engine was used in some 2006
> Camrys, so I don't know why the '06 model year doesn't appear
> in the list above. =A0The Amsoil do***ent is copyrighted 2008,
> so it shouldn't be a matter of old information. =A0Was the sludge
> problem somehow fixed in the 1MZ after 2002 ?