This is by far the best and worth the extra $2.

‘I was kicking myself in the butt from the second I ordered the Denis Wick oil until I used it. I used to oil my valves ever week or so, but now I oil them when I'm bored and can't seem to remember the last time I used valve oil (it lasts forever!). I bought another bottle just in case I lose the first. I have tried every oil from Blue Juice, Pro Oil, Al Cass, Pure Oil, Viper Oil and many more and this is by far the best and worth the extra $2.’