O.S. Engine - Glow Plug #LC4 Medium for T-Maxx/Revo  [OSMG2708]

CHARACTERISTICS:

• Perfect for 1/10 scale down road machines such as the Traxxas TRX2.5 and 3.3T items plus the O.S. .21 TMs
• As with any O.S. Max radiance plugs, the LC4 is tough enough to you need to temperature and supply hassle-free starts and outstanding durability
• High-performance long reach radiance plug suitable for 1/10 scale off road applications that require constantly varying speed
• The LC4's much longer reach expands coil further towards the engine's combustion chamber enhancing combustion for better idling and good acceleration through the whole throttle range
• Compatible with Traxxas's EZ-Start system
• Medium heat range for fuels with 10%-20percent nitro content
• No idle bar

How to select the utmost effective Glow Plug? Please talk about the after url.
http://www.osengines.com/accys/choosing-glowplugs.html