JimH2

http://drivers.lexus.com/lexusdrivers/info/my-lexus/resources/submit-owners-manual-search.do Lexus manuals online for maintenance, etc.

Looks like it has a timing belt: http://www.drivewire.com/vehicle/2008-lexus-rx400/timing-belt-kit/

Congrats on the "new ride". You are going to love the new RX 450h. Have fun reading the manuals---good for some winter reading material.

Here is the link to search for any TSB's. http://www-odi.nhtsa.dot.gov/cars/problems/tsb/tsbsearch.cfm I have a 2010 450h (Purchased new in October, 2010), and I do not have that loud sound at idle that you have. The best bet is to do exactly what you are planning to do---park next to a few other 450h's and listen to the difference at a Lexus dealer.

http://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Energy+MXV4+S8 http://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Energy+MXV4+Plus I do not think either of the MXV4 tires are worth driving in snow/ice conditions. I have the MXV4 Energy on a 94 Lincoln Mark VIII, and it does not do well in snow/ice. I do not think it is worth getting into an accident to keep the MXV4 S8 tires. I would purchase true winter rated tires and sell the S8's for whatever you can get for them.

Color is Smokey Graphite Mica (not mice) !!

Color: Smokey Graphite Mice w/ Black interior.

Just purchased my 1st Lexus this month. Traded in my 02' Acura MDX for a new 2010 RX 450h. Decision was based on the Lexus comfort,overall ride, quality, and the high hybrid gas mileage. Looks like a great website/forum, and looking forward to enjoying the new Lexus. The Lexus is quite a contrast from driving one of it's other garage mates---my 55' Chevy.

Interesting to see that the poll goes from 60-69 and then to 80 +. Not sure what heppened to those 70-79 !

A great find for that size tire. I was looking in a different category and did not see the street/sport truck all-season one. They already shipped my Michelins, so I will have a lesser rated tire vs. the one you pointed out. I should have checked all categories for that size. Here is the category I was checking in. http://www.tirerack.com/tires/surveyresults/surveydisplay.jsp?type=CSTAS Thanks for pointing out that tire--will keep in mind for the future. Will be happy to dump the Bridgestone Dueler H/L 400's.

For those considering new tires, I rely on the Tirerack "survey" results to help make my choice. I have found their survey results to be pretty good as far as giving you basic info.on the good or bad as far as comparing different tires. I have ordered tires from Tirerack 2 X, and they ship the next business day (UPS), and you get your tires within a few days time. Sometimes Discount Tire/America's Tire will match their price. I just purchased a 2010 Lexus 450h last week and looked up the tires on Tirerack (Bridgestone Dueler H/L 400's). They were rated as very poor in general (rank 56 out of 58 for highway all-season),and especially for rain/winter conditions. I decided to order new tires from Tirerack and will be replacing these this week (< 200 miles on the OEM tires). I opted for the Michelin Latitude Tour HP as they were rated pretty good and they had the size (235/55R19) for my SUV. If the Bridgestone Dueler Alenza's or the standard Michelin Latitude's had come in that size, I would have ordered those since they are rankled # 2 and # 1 respectively in their class of tire.