Adulteration is a trick used by unscrupulous fuel dealers to maximise profits.
The authority attributed the drop to the decrease in landing cost and the stabilisation of the shilling against the dollar.
They are using waste wood from the Nairobi Handicraft Cooperative Society as it is cheap and readily available.
The costs of a litre of the three products decreased by Sh1, Sh1.20, and Sh1.30, respectively, retailing at Sh192.84, Sh179.18, and Sh168.76 in Nairobi.
They say that a decreased reliance on fuel marks a historic moment for Kenya and will help address the challenge of high fuel prices.
It is suspected that the fuel was syphoned from oil transport tankers and was being kept for buyers, mainly cartels involved in the illegal business.
EPRA on Sunday, reduced petrol prices by Sh7.21, diesel by Sh5.09 and Kerosene by Sh4.49.
Kerosene and diesel registered the biggest price drops, at Sh18.68 and Sh10, respectively.
During the operation, five tankers were discovered at the site, containing over 17,020 litres of diesel and 6,110 litres of petrol.
The government resorted to stabilisation measures to cushion consumers who were wary of digging deeper into their pockets.
This surge defies state-backed initiatives to reduce the cost of essential fuel, including the removal of the eight per cent value-added tax (VAT).
A prosecution counsel sought the warrant against businessman Yagnesh Devani, who is accused of stealing 318.656 metric tonnes of jet fuel from KCB.
Super petrol's price dropped by Sh7.21, diesel by Sh5.09, and kerosene by Sh4.49, EPRA announced in its latest monthly review.
The price for scarce fuel rose 20-fold to 25,000 Sudanese pounds or about $20 a litre.
Riyadh first announced its voluntary cut after an OPEC+ meeting in June 2023.
Ruto says Kenya and Uganda are resolving the issues that had been affecting the flow of petroleum products between the two countries.
A key focus on the agenda is the increase in wasteful and fuel-intensive plastics, a major contributor to the climate crisis.
The Ministry of Energy increased the levy from Sh0.25 to Sh0.75 per litre,
For Kwale, the residents will purchase super petrol at Sh203.68, diesel at Sh192.79 and Kerosene at Sh190.44.
The changes which are effective at midnight are for the month of February.