Oil changes with synthetic oil. on 2001 Lexus LS430

How often must the oil be changed in a 2001 Lexus LS430 if I use a good synthetic oil? I drive less than 15000 miles yearly, probably 1/2 highway miles. Not much stop and go or stuck in traffic. Can I do 5000 to 7000 miles or do I have to stick to 3000 ?

by in Oak Lawn, IL on November 13, 2010
3 answers
ANSWER by on November 13, 2010
i would do 7500 on synthetic Roy
ANSWER by on November 13, 2010
If you use a high grade fully synthetic motor oil ( such as Mobil 1 ) and not a synthetic blend, and use a high grade filter, then 5000 is a very good interval, given your driving habits. I use this type of oil in my Camry and it works out fine.
ANSWER by on November 14, 2010
Good question and so many opinions out there about oil! Think of this--airliners and fighter jets run synthetic and it is NEVER replaced... just filtered, analyzed, and topped-off. A premium synthetic does not fail like the haphazard molecules that are pumped from the ground, refined, and labeled 'motor oil.' While I don't advocate never changing, you should look into AMSOIL. I have the 4.8 L and drive about same as you, 15K/year. I run ASL, that's AMSOIL's 25,000 mile oil that tests PROVE (not opinion) to be superior to Mobile1 and all others. I change once /year and order from lubedealer.com/kerry-luz. They also have full synthetic OE you run for what owner's manual says, or if you like their, XL is for up to 10,000. My 4.8 L is in perfect condition and has had AMSOIL since 2002 when I bought it. I have saved a lot of money, had peace-of mind AMSOIL IS the best, and have also cut-down on the amount of used motor oil going into the environment.

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