Ok, decided to do the change myself.
Read it made changes smoother, and after doing it, it's a nice and noticeable change.
Almost consider it a Must Do.
Couldn't really grasp by what people meant by "smoother" ,but much akin to going to the dealer and shifting a new car. Almost.
There was definitely an "oh wow" on the first shifts.
Grab a breaker bar, I tried without, and it was really firm.
Not an issue at all with a Breaker Bar.
Mine's 18 inches.
(Don't get a chance to say "Mine's 18 inches" often, wasn't going to pass it up)
Used 2 bottles of the Royal Purple
And a Plews 5501 Quart Pump , which is under $8.00
Nice quick easy change.
Royal Purple looks nice, sounds nice ... does not smell nice. It Stinks