I have a '96 Mazda 626 and just yesterday I noticed that my car was shifting weird. Today I got on the freeway and it seems to me that it won't go past 3rd gear. I can't go more than about 65mph without my RPM getting into the red. I thought that maybe my transmission fluid was low so I took it to Jiffy Lube and they checked everything and put new transmission fluid in and the problem still exists.