Sluggish Shifting
My 1991 shifts sluggish between shifts sometimes. I have never changed the fluid and never had any problems or leaks yet. Do I need to change fluid / filter? I have always heard don't ever do a flush. It has 125,000 on it. Always shifts but not a fast shift between gears. Or maybe that is normal for 1991? I see a lot of additives that says to improve shifting at wal-mart, should i try one?

