My drain plug for the front diff. oil is of the TORX head not the normal Hex head. So i'm looking to find out the size of TORX tip to purchase.
Please help because my oil is low, i don't want to damage the diff.
My vehicle is a 2003 impreza 1.6TS.
Thanks.

 

If your drivetrain is the same as a 4WD WRX Turbo etc, the diff is integrall with the gearbox so you use the gearbox drain plug to empty and the dipstick tube near the bulkhed on the driver side coming out of the gearbox to add oil.