What type of brake fluid?

[Gforrest2]

About ready to flush my brake fluid but confused on what type to get. All the searches talk about ATE Super Blue. I've got blue fluid now so I will flush with amber. Will the ATE SL.6 work? Or am I making too big a deal about this. None of my local stores carry ATE so I'll have to order it. Or will any DOT Type 4 fluid work? Car is not driven hard and up here, the weather neither gets too hot or cold, if that matters. I supposed I can get the fluid from the dealer but I'll probably pay an arm and leg (paid $30 for a gallon of Porsche coolant at the dealer a while back).

Edit: The SL.6 is a low viscosity fluid if that makes any difference.

Edit #2: Or should I use this: ATE TYPE 200 Amber Brake Fluid is designed to excel within the extreme demands made on a race vehicle or by high performance drivers and exceeds all DOT4 standards. It is compatible with and will mix well with most DOT3, DOT4 or DOT 5.1 fluids.