i do not have to top up for my request to Shogun under NPMP
shogun EO so far the best I i tried.
car mileage after using 8-9k only u start to feel the EO degraded
Most other 5-6K, some off the shelf more expensive EO, 6-7k onwards u start to feel engine humming louder and louder, accelation coarser and coarser.