I have 70% nitrogen in my tyres... "is that good??????"
I really don't see why you'd want to put nitrogen into your tyres, just because the tire-man says to do it.
Words they like to use like "high performance", "low oxidative properties", "it better fuh yuh tyres and handling" = total bullshyet.
Does anyone remember standard-5 science?

Those tyre-folks are fooling you into thinking that putting nitrogen into your tyres is going to give you Formula 1 performance. You're not going to become Michael Schumacher or Ayerton Senna overnight meng.
Don't do eet!
(save the money and buy some high-quality oil instead - that'll give you LOADS more performance than some bullshyet some back-yard tireman trying to sell you).
.... bottom line, the best place to go for a 78% nitrogen fillup for your tyres is....... the local gas station.
