well i sure dont know about the auto trans oil . i have a w-6 that sat in barn and stuck. poured in auto trans oil in spring and tryed yanking it back and forth in gear and no way, tires just skid. same with a w-400 i put new sleeves in. sat out with exhaust covered for 2 yrs. and stuck. filled with auto trans oil sat for 3 months . tryed the same thing on it and no way. the only luck i have is removing the head and clean out the rust and break them free with a round hard wood and 12 lb sledge. i can say now i tryed the auto trans stuff. and it dont work. even looked in cyl"s with flashlight before adding oil and cyl"s looked shiney so i thought i would try the miracle oil cure. but thats a joke i can see.nothing like disassembly and doing it right.
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