This is about a friends Tacoma 2002 V6 with 5 speed. He's got 30K miles on it and did a gear oil change from stock Toyota oil to the Amsoil 75-90.
He's been driving for 2 days and reported very hard shifting almost grinding between shifts. When cold, 1st gear can only be selected when completely stopped. Before he could roll to a stop and already select 1st. The gearbox had no such symptoms up to the oil change. This behavior doesn't change much even when the truck has been driven for while and the oil is hot. He's a responsible driver (actually I'm not so sure about that)and takes care of his truck.
Does anybody out there have similar experiences?
Thanks for your input