I have a 2006 GS 300. I bought it used in 2010 with 62k miles on it. For the first 2 years, I had no problems. Last year, I began to have problems with the oil light coming on close to time for the oil change.
I get an oil change every 5k miles as recommended like clock work.
I was told that this model vehicle absorbs oil and it was recommended that I contact the Lexus Manufacturer.