I felt my Z lost some Horse power compare to when i picked up at the dealershop, so i put Lucas fuel treatment for make myself feel good...
I don't actually know it would work properly or not...
I used about 250ml of Lucas fuel treatment into 65 liters of 94 octane fuel.
I believe it will help my Z to regain that lost HP at the end of result.
Did i waste my money?? I hope not...
Lucas Fuel Treatment | Canadian Tire
Picture of Lucas fuel treatment.... if you're interested...