ClubLexus - Lexus Forum Discussion - View Profile: milesdf

milesdf milesdf is offline


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  • About milesdf
    Lexus Car
    Year of your Lexus
    Married. Retired Army Officer
    Sailing, Movies, Cars!
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    Seattle, WA

    2004 LS430


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  • Last Activity: 07-15-19 02:30 PM
  • Join Date: 02-16-10

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  1. jayclapp
    02-24-10 08:09 PM
    It appears that you do have a light grey interior. Ecru matches up better with brown. The dash and upper door trim is dark brown in my car. I believe yours is dark grey and not brown, from looking at your photos.

    Glad to help with your wheel/tire issue.
  2. jayclapp
    02-24-10 03:41 PM
    Sorry about taking so long to respond to your message on my profile. I just didn't notice that I had a private message until today.

    My car has what is called ecru interior color. In my view, it is actually an off-white, and probably what you have.

    Regarding your odometer with 17 inch wheels. You can interchange wheel sizes and keep an acurate spedometer reading if the tire diameter is kept the same (or very nearly so).

    The 04 LS430 specs provide the following wheel/tire sizes:
    1. 17" wheels with P225/55R17 tires, and
    2. 18"wheels with P245/45R18 tires for the Sport Suspension model

    If you go to you can find the specs for your particular tire and size. Using that table I found the following tire diameters for these two wheel/tire sizes:
    1. The 17" wheels with P225/55R17 tires have a diameter of 26.8 inches
    2. The 18"wheels with P245/45R18 tires have a diameter of 26.7 inches

    This table lists all tires that they consider as interchangeable. This 0.1 inch difference in diameter will cause an error at 60 mph of 0.2 mph. This is not detectable in the speedometer. The mileage is also not a consideration, as at 100,000 miles the error would be only 373 miles. Also, considering that tire wear will cause a greater deviation in the diameter than 0.1 inch, this tire difference is not an issue to be concerned about.

    For these reasons, I don't think that Lexus makes a different speedometer for the Sport Suspension model.

    Check the tire size on your 17 inch wheels and see if they are the same as I have listed above. If not, go to the tirerack table and see if they appear on the table with the two tires listed above.

    My guess is that you car had the Lexus 18 inch wheels exchanged for Lexus 17 inch wheels, perhaps for a set of winter tires. It's also interesting to note that the 18 inch wheels tire is actually smaller in diameter than the 17 inch wheels tire. I would never have suspected that.

    I know you're going to enjoy your car.


    My guess is that your tires are the same size as the OEM 17 inch wheels tires. If you want to check the Lexus OEM 18 inch wheel tire, it is P245/45R18. My hunch is that both of those tires have the same diameter.

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