Has anyone used Lucas Automatic Transmission Fluid? Does raising the viscosity of the fluid actually help that much is there are not leaks on any of the seals?

 

I had an old fullsize Jeep Wagoneer and Lucas was all that kept that auto trans going for years (leaked like a sieve and slipped). If your trans is shifting fine and not leaking don't worry about it. If you're having shifting problems and stuff give it a shot. I have had good success with it limping some weak parts along