Hello Jodi, the kind of oil that a Lexus IS 250 requires depends on the year of the vehicle. IS250 2010 and older require Synthetic Blend 5W30 IS250 2011 and newer require Full Synthetic 0W20
Best to call. Prices have changed recently. Plus the price can vary for the larger V8s.
Why not call u r Lexus dealer
Synethic
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