I recently put in some Redline Diesel Additive (twice with i 1/2 tank full) in my gas tank. My car developed some shaking off and on. Could this be causing it?Did i put too much?If i did what is the best remedy? I also had my valves adjusted about a week and a half ago. It was running smooth and with a little more pep. Last question , what is causing my tranny to leak when I am heating up the caR ( idling). I already poured some ATF to replenish the lost ones that leaked out...should I have a tranny service ?:confused

84 Turbo Diesel with 254K - "ASti"
99 430 ML - "Ruby"