A auburndog New member Sep 6, 2009 #1 My 15 yr. old Sunbird's transmission has never been flushed and the fluid is dirty. I have heard not to flush after it gets dirty. Will this do any damage to the engine if not flushed?
My 15 yr. old Sunbird's transmission has never been flushed and the fluid is dirty. I have heard not to flush after it gets dirty. Will this do any damage to the engine if not flushed?
