Pengaruh penambahan katalis terhadap kinerja mesin otto berbahan bakar premium = The influence of catalyst addition on the performance of otto engine

Analisa perbandingan aditif oksigenat B dengan non oksigenat terhadap kinerja motor otto berbahan bakar premium = Comparison analysis of oxygenate b additive and non oxygenate additive to otto engine performance

Analisa kinerja dan emisi gas buang motor otto terhadap penggunaan aditif bahan bakar aditif pelumas. (Tinjauan performance engine)

Pengaruh penggunaan katalis terhadap kinerja mesin otto berbahan bakar pertamax plus = The effect of using the catalyst of the otto engine performance fueled pertamax plus

Pengaruh penambahan katalis terhadap kinerja mesin otto berbahan bakar Pertamax = The catalyst effect on otto engine performance with Pertamax fuel