Diesel

Diesel is a light brown tabby tom with black zig-zag stripes, a white chest, muzzle, and paws.

Warrior's Return

 * Diesel is a kittypet whose Twolegs run Mac's Truckstop. Even though he obviously takes food from Twolegs, making him a kittypet, he refers to himself as a loner when asked if he would come with Graystripe and Millie. When Graystripe is hit by a monster, he helps Millie nurse him back to health. Graystripe thinks that he likes Millie, and feels like he has to compete with him for Millie's love. Diesel also thinks riding a monster to the Sun-Drown-Place is a good idea, and helps them find the right one.