largo

I use a store bought injector additive twice a year...thats all you will ever need...buy a good brand name one should be $5-$10 max

On the heater topic. I picked up my RX 400 new in October and our weather went to -30+ in November and stayed there until today. My vehicle heater works fine even better than my 2005 Highlander. I leave the RX outside and not plugged in some nights and it starts right up and is warm within 5 minutes. As a bonus the seat heaters get so hot on max you need to turn them down. In short there is plenty of heat in any weather in this vehicle, but the engine runs steady until the car warms up.

Make sure you are using MP3. I burn mine through ITunes and they work just fine on my Rx400

Any one figured out what those strange sound are that come from the RX400 about 5 minutes after you turn it off.

Has anyone noticed that the front seats on the 2008 are a different size. Drivers side larger than passanger. Or am I imagining this. Also where is my aux jack for Ipod...every other Lexus has one and the brochure says there is one???