Octane - how many points equate to a RON?

[GaryM]

According to Roger Clark (whom I asked about the dosage), they said that as a general guide, for fast road use 1/3 of a bottle per tank and for trackdays use 1/2 a bottle per tank of Optimax.

The bottle quotes that for full performance benefit to mix the entire contents to 60 litres of fuel. I did just that.
Normally with CVL Turbo I can increase timing over my performance map by a maximum of 2.25degrees, with NF I managed 3.75degrees with no more than 3 degrees of timing correction but could maybe have got away with 4.5degrees.

I can certainly recommend it!