ive got the bottle in my hand and it says "this product is so powerful using half strength may well achieve the disired result. one bottle (500ml) will treat 60 litres of fuel"
so for our datsuns its like a cheap insurance but experiment with different "dosage levels" until you find the right one that suits you that is how i did it, for my worked A15 with 220psi compression i use 250ml for 20litres of fuel
-boosts octane by up to 7 numbers (70 ron points)
-stops engine pinging (detonation)
-increases performance and acceleration (again on the dyno i whitnessed this and it really does increase horsepower )
-protects valves and valve seats from wear
-prevents engine damage caused by detonation
safe for catalytic converters and oxygen sensors.
hope this helps