Can you mix different octanes of gasoline?

YAKARTA, KOMPAS.com – Different types of octane gasoline cause some vehicle owners to often mix it for various reasons. In addition to combining Premium, Pertalite, Pertamax to Pertamax Turbo.

For example, it’s not uncommon for car owners who occasionally use high-octane fuel in their vehicles to improve engine performance. So is that true?

The head of SPBU MT Haryono of Pertamina, Paimin, said that this was legitimate, but that it would have no effect on engine performance.

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“For example, car owners usually use Premium gasoline, then every 6 months Pertamax Turbo content is allowed. However, there is no influence effect on vehicle performance,” said Paimin when contacted Kompas.com. , Monday (04/05/2020)

Paimin explained that mixing Premium, Pertamax with Pertamax Turbo is very feasible because they are both gasoline groups and have the same substances. However, this is actually not recommended.

COMPASS / HERU SRI KUMORO Illustration of Pertamina gas station.

“Each gasoline has different sulfur characteristics, the load is also different,” he said.

If you initially consume Premium, then mix it with high octane fuel like Pertamax Turbo, then it will not improve engine performance. Precisely this is considered to reduce the quality of the fuel.

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“It is better for car owners to choose BBM based on the compression ratio of the vehicle, if they choose BBM, which has a higher ratio than the vehicle they have, it might not burn completely.” Automatically there will be residual residues, “said Paimin

Unlike Paimin, Anjar Rosjadi, Head of PT Astra Daihatsu (ADM) Engine Parts Service Division, said the high octane fuel concept is good for engine performance.

“New car outlets currently have an average engine compression ratio greater than 11: 1, like Sigra, for example, at 12: 1. Using high octane fuel is certainly good because it makes combustion more perfect.” Anjar said.

According to Anjar, perfect combustion will have an effect on increasing the performance of the car to have an impact on better fuel efficiency.