Hey everyone which Fluid Brands do you use in your Van?

My van is 2.1L  Auto with rebuilt engine and rebuilt transmission.

Note that I only want to use products which are commonly available on
road. Redline would be my only exception because you change the tranny
fluid every couple of years.

Coolant:
What are peoples feedback on the Prestone Extended life or Dex Cool?
Which is better?

PowerSteering Fluid:
I was using a Valvoline product which seemed ok.

Transmission Fluid:
Red Line or something else?

Gear Box Oil?

Oil:
Mobil 1 or Castrol?
Which grade? 5/30, 10W/40 etc..

Going to be driving cross country during the hot summer.

Thanks to everyone for their feedback.

Regards,

Robert
88 Auto Wolfsburg Auto