I always wash if time permits and the car is dirty. Halos pareho lang kami ni SG, wax-maintained, clean wheel wells etc..
Kaso di ako weekly nagvavacuum. Tamad ako eh , kapag medyo nagbbuild up lang yung mga dirt at maliliit na bato. Pero pinapagpag ko yung floor mats often. Once every 2 weeks apply protectant sa interior and rubber moldings ng doors.