Tips on how to keep a dark exterior clean
 

Just bought a new rx 350 two weeks ago and I love it so much. We picked nightfall mica exterior and parchment interior. I know Lexus offers free car washes but waiting there for hours every week just doesn't seem doable. Thanks.

Depends on everyone's situation, but I would rather do it myself. I would use a water-less wash before letting Lexus wash my car.

Congrats on the new RX

This thread will probably go to the Auto care and detail section.

I've noticed considerably less dust after using Cquartz. I bought the UK version and did it myself. Usually this time of year, my cars would be coated with a green layer of pollen. I haven't noticed the layer as bad after applying the Cquartz.

There is no secret to keeping a dark exterior clean. A proper coating or sealant will only speed up the cleaning process. Biweekly or monthly maintenance washes should keep your car in a top performing shape.