Cobalt oil filter cover tools found!
I found a few tools that are made specifically for this rubber Cobalt filter cap. Here are the part numbers:
- Snap-on part number A106, a socket for oil filters on GM Ecotec Engines, 1 1/4″ (32mm), 3/8″ drive
- Hazet part number 2169-32, oil filter wrench
- Lisle part number 14700 Oil Filter Wrench for GM 2.2L, Filter Wrench for GM 2.2L
I just bought one on eBay that appears to be the Lisle.