Do two piece wheels need any maintenance? I was reading this article & this part had me wondering.

Modular Wheel Inspection and Maintenance
Two & Three piece modular wheels require periodic maintenance. You'll want to work out your own maintenance schedule, but here's an example of what the manufacturer recommends. Each Season disassemble, thoroughly inspect, clean, re-seal, and re-torque each wheel:
Replace wheel bolts each season
Wheel Bolt Torque: 1/4" bolts 15 ft/lbs. or 180 in./lbs
5/16" bolts 20 ft/lbs.

After thoroughly cleaning all mating surfaces with an appropriate cleaner, add a thin skim coat of silicone sealant to these surfaces, assemble wheel and torque bolts to recommended torque
Install a new valve stem
Add a thick coat of silicone sealant to the drop center area of the wheel and let it cure for 24 hours before initial use



I've got 18" Oettinger RZs and was wondering if I need to have them serviced like the article describes.<ul><li><a href="http://www.rsracing.com/tech-wheel.html">http://www.rsracing.com/tech-wheel.html</a</li></ul>

None of the wheels we carry require this kind of maintainance. Suggest checking with the manufacturer for the real story on your brand of wheels.