The oil normally turns brown with age. It can also turn brown with internal failures.
It is directly behind engine.
Idling in neutral.
AX5
ATF +4 for an automatic.
any dot3
No, dipstick. Fluid level is checked through a plug on the side.
Yes.
No.
To edit original question....Jeep Wrangler 2005 manual transmission
The AX5 and AX15 transmissions use 75W90.
The 2003 Jeep Wrangler has a 5-speed manual.
The 2011 Jeep Wrangler has a 6-speed manual.