For the initial treatment add ACTIV8 to the engine oil at a ratio of between 2.5 and 5 percent of the sump capacity. i.e. between 25ml and 50ml per litre of oil.
In a standard auto application this treatment will last for 25k miles or 5 oil changes.
Manufacturers' recommended oil changes should be observed. But after the first treatment with ACTIV8 there is no need to add any more ACTIV8 until 25k miles or 5 oil changes have been completed.
A further treatment using half the original quantity will maintain the required ratio for a further 25k miles or 5 oil changes.
The exact percentage of ACTIV8 to oil, desirable for high performance engines, such as when racing, can only be ascertained during tuning trials.