Composition
In the interest of general versatility, unit size has been standardized at φ68x65mm. Fitment bolt sizes are M20-1. 5P and 3/4-16 UNF. Filtration performance JIS standard is 25μ whereas HKS is 20μ making the filter compatible with most standard engine requirements.
Filter Life
Under normal usage, it is recommended that the filter is changed in every 10,000km or 6months. For Sports driving, the recommended distance is approximately 1/3 - 1/2 of the previously mentioned figure (as the engine revolutions are several times that of normal driving). However, to maintain optimum low pressure loss properties, it is recommended to change the filter every 3000km when an oil change is performed.
