bige818

2003 Mustang GT 5 speed, I want to put Royal Purple in my car what exactly do I want, oil, weight , rear end, tranny and what they are (synchromesh) any help will be grateful. Thank you[sm=thanx.gif]

SilverGTV8

I run 5w-20 the recommend ford weight. In the rear end (don't quote me don't have the bottle infront of me) is going to be when i do the gears 75w-90 (that sound right) and the tranny will use what ever ford recommends. ATF? I believe.

Soaring

For engine oil, I use Redline synthetic oil and their filter. I haven't changed the tranny and differential heavy oil yet, but will go with Redline synthetic when I do.