Silas Sludge Auto Scrap is a scrap yard appearing in the TMHT adventure comics.
During a fight against the Foot Clan, Raphael is knocked out by Shredder. The other Turtles let the villains escape in order to tend to Raph. They carry him home and he finally comes around, to the relief of his brothers and Splinter. Though Splinter assured all of his sons that the escape of their enemies didn't matter, Raph blames himself. That night, after everyone is asleep, he sneaks out of the lair and goes in search of the Technodrome.
After a long, fruitless search, Raph is ready to give up. Just then, he spots Bebop and Rocksteady coming out of an ice cream shop. Raph follows the pair to Silas Sludge Auto Scrap, watching them push open the gate to enter and thinks that only the geeks could come up with a name like "Silas Sludge". Following them inside, Raph goes past stacks of scrap vehicles and aircraft until he comes upon the Technodrome, expertly hidden behind all of the junk piles.