SXL? GXL? TXL?

Well TXL and GXL are both commonly used by OEM's. I believe I've read that most of the Euro brands favour the GXL with the domestics favouring the TXL.

Here's a good read about the differences. Wire Selection Guide, GXL Wire, TXL Wire, UL 1015, MTW

I used the cheaper GXL wire. Only difference was the thickness of the insulation on the wire.

Riddler