this is form my jeep with 208,000 miles. I havent tried it in my svx yet because the top gears are already gone.

I get it at a local autoparts store. I drained the transmission and replaced the filter. I put the bottle of Lucas in first and then filled the tranny to the proper level. I put some in every few months.
The funny thing is every one said don't drain the old fluid. they claim it is full of disk fiber and junk that helps the worn transmission. I thought that was a bit odd. The filter was almost unpassable wheni took it out.
Anyway, the jeep tranny always slipped a bit in the winter for the first couple of upshifts. after I started with the lucas stuff I rarely have that problem.

Good luck