It's seldomly needed when cold. Another simple trick is to leave the glow ignitor on the glowplug for a few seconds and then start the car up. I have a starterbox with optional powerpanel and glow ignitor attachment. Since I walk down like 5-6blocks to the park the heat quickly dissapates once the car is out of the bag. No worries though. Leave the ignitor on and clean starts. I started my Sport NT the same way and she ran for tanks.