If you keep up the service like your sopposed to do... Forever.
300000 miles
300000 miles
I have 100k on mine and they are fine.. mostly highway miles.
The RX 350 has a Timing chain, not a belt. (The 330 had a belt). With proper care and maintenance on your engine, it should last a long long time... but I would plan to replace @ 150,000. It will eventually wear out..
Most IS 250s, depending on driving, get about 25000-30000 miles on the front brakes and rotors.
The 2009 Lexus IS-350 is 15 ft. 0.1 in. (180.1 in.) long.
The 2014 Lexus IS-350 is 15 ft. 3.7 in. (183.7 in.) long.
The 2012 Lexus IS-250 is 15 ft. 0.3 in. (180.3 in.) long.
The 2013 Lexus IS-F is 15 ft. 3.5 in. (183.5 in.) long.
The 2012 Lexus IS-F is 15 ft. 3.5 in. (183.5 in.) long.
The 2010 Lexus IS-F is 15 ft. 3.5 in. (183.5 in.) long.
The 2009 Lexus IS-F is 15 ft. 3.5 in. (183.5 in.) long.