In the midst of the energy transition, many countries are turning to blended biofuels such as E10 to reduce their dependence on oil and cut emissions without replacing their entire vehicle fleet at once. While Spain and other European countries are debating how to accelerate the use of these fuels, Vietnam's experience is becoming a case study worth watching closely.
This Asian country has launched a a very defined roadmap for extending E10 gasoline throughout its territory, combining regulation, business investment, and public awareness campaigns. Although the context differs from the European one, its progress offers clues about what works and what obstacles should be anticipated when promoting the use of E10 in markets like Spain.
What is E10 biofuel and why is it being promoted?
E10 gasoline is a fuel composed approximately of 90% conventional gasoline and 10% ethanol of renewable origin, typically produced from agricultural raw materials such as cassava, sugarcane, or corn. This mix allows for leveraging the existing distribution infrastructure and current vehicle fleet, without requiring abrupt changes for users.
From a technical point of view, ethanol acts as extra oxygen supply in combustionThis helps make the combustion process within the engine more complete and cleaner. According to specialists with over a decade of research in this field, this small percentage of ethanol improves combustion quality without significantly altering the vehicle's performance.
One of the most frequent fears among drivers is that ethanol, having a lower calorific value than mineral gasoline, could increase fuel consumption. Studies conducted in countries where E10 has been on the market for decades indicate that The difference in calorific value is only around 3%.and that this is compensated for by more efficient combustion, which in practice maintains a consumption very similar to that of traditional gasoline.
Therefore, the available power and fuel consumption recorded with E10 are, in general terms, equivalent to those of gasoline without biocomponentsAnd in some tests, slight improvements in efficiency have even been detected. This technical reality is key to overcoming reservations and normalizing its use, something that would also be crucial for a widespread deployment in Spain or the European Union.
Political roadmap: from energy strategy to the gas station
The E10's advance in Vietnam was not the result of improvisation, but of a integrated energy planning in its national strategyA resolution by the country's highest political body established the development of biofuels as a priority to strengthen energy security until 2030, with a longer-term vision.
Based on this framework, the Ministry of Industry and Trade approved a circular that sets a clear milestone: from a specific date, the Unleaded gasoline that is sold must be mixed with E10 for use in gasoline engines throughout the country. This measure represents a shift from pilot programs to widespread market adoption.
With international crude oil prices subject to sharp fluctuations and the need to reduce exposure to imports, the Government also issued a specific directive to promote the use of E10 bioethanol with the aim of cutting fossil fuel consumption by around 10% in the short and medium term. These kinds of quantified targets help guide the industry and regulators.
To ensure that this transition was carried out in an orderly manner, the Government Office entrusted the Ministry of Industry and Trade with the task of monitor the supply and demand of ethanol, gasoline and biogasolineand to demand concrete plans from large oil companies for the purchase of ethanol to ensure the necessary supply for the blend.
In parallel, the Government has called for progress on a resolution to Remove regulatory barriers and accelerate the deployment of E10Gathering coordinated input from various ministries. All of this is aimed at preventing bottlenecks and shortages when the E10 blend becomes the dominant option at service stations.
The role of major oil companies in promoting E10
The implementation of E10 cannot be understood without the direct involvement of distribution companies. In Vietnam, groups such as the national company Petrolimex and the PVOIL corporation They have assumed a leading role in logistics, pricing, and communication with users.
Petrolimex has defined reference prices for the biogasoline E10 RON 95-VPrices are published transparently on both their website and those of their subsidiaries, with differentiated rates for different geographic areas. This policy helps stabilize the market and offers a fuel that, thanks to incentives, is usually cheaper for the end consumer than conventional gasoline.
The group has extended the E10 offering to its distribution network, which includes its own service stations, retail outlets, partner distributors, and franchised gas stations. In this way, the network of supply points with E10 It has been expanded rapidly, preventing drivers from encountering difficulties refueling with this biofuel.
According to internal data, if the group were to operate exclusively with E10 RON 95, conventional gasoline consumption would be reduced by almost 10%, which represents approximately tens of thousands of cubic meters less of fossil fuel per monthThis reduction would ease the pressure on imports, an objective also shared by many European countries.
PVOIL, for its part, has announced the sale of E10 at dozens of service stations in certain provinces, supplying the blend directly from its own facilities. In practice, the fuel has demonstrated a stable performance in vehicles and good customer receptionThis is considered essential for biofuels to gain market share sustainably.
Distribution, deployment times and public acceptance
The major companies have been preparing in advance the blending, transport and logistics of E10 gasoline in key depots distributed throughout the country. Efforts have been made to ensure that operations comply with technical standards and meet the requirements of current engines, so that the transition is as smooth as possible for workshops, fleets, and individual users.
In some regions, it has been set as a goal that 100% of an operator's stations sell E10 Starting from a specific date, the network conversion will be completed in a matter of days. This type of short timeframe requires precise planning, but it also sends a clear message: E10 is not a marginal option, but the new standard.
The experience gained in cities where the rollout began earlier reveals significant data. After several months of commercialization, no issues have been recorded. no technical incidents or consumer complaints linked to the use of E10 in their vehicles. Furthermore, consumption during the pilot period has increased by around 40% compared to the first few months, indicating a gradual acceptance as users overcome their initial apprehension about the new fuel.
Companies have strengthened their internal control systems by reviewing their quality management and verification tools to ensure that the blend meets state and corporate specifications. This emphasis on quality, when applied to the European context, would be key to building confidence in E10 in markets like Spain.
Beyond logistics, authorities have stressed the importance of market surveillance in the initial phase, with inspections to prevent off-standard mixtures or unjustified price increases Taking advantage of the transition. A clear regulatory environment and effective supervision are elements that contribute to stabilizing the market and generating security among drivers.
User confidence, environmental and economic benefits
Engine and fuel specialists emphasize that the decisive factor for E10 to become part of everyday life is the user confidence based on technical data and in real-world experiences. As long as there are doubts about vehicle compatibility or potential engine damage, adoption will be slower.
From an environmental perspective, E10 helps reduce emissions of pollutants such as unburned hydrocarbons and carbon monoxide, thanks to more complete combustion. reduction of local pollutants This is especially relevant in urban areas plagued by poor air quality, a problem shared by large European and Spanish cities.
From an economic point of view, public support policies allow the E10 to be offered, in many cases, to a lower price than traditional gasolineThis provides direct relief for drivers' wallets. At the same time, the development of a domestic ethanol industry can generate activity in rural areas and agricultural sectors, diversifying sources of income.
Regarding performance, tests and experience in countries such as the United States, Brazil, and Thailand show that E10 meets the requirements. same technical requirements as conventional fossil fuelswithout negatively affecting engine durability when standard maintenance recommendations are followed.
To reinforce this confidence, manufacturers and authorities often publish lists of vehicles compatible with the use of E10Clarifying doubts and preventing rumors. Clear and honest communication with the consumer helps the fuel switch be perceived as a natural evolution rather than an imposition.
Institutional coordination and support for the bioethanol value chain
The deployment of the E10 in Vietnam relies on close coordination between several ministries. The Ministry of Industry and Trade assumes responsibility for manage the supply, import and distribution of petroleum products, with the mission of preventing shortages in the market during the transition to biofuels.
The Ministry of Finance, for its part, studies and proposes fiscal and tax mechanisms to incentivize the production and use of bioethanolThese types of measures can include reductions in excise taxes, investment support, or bonuses for the blending of biocomponents, instruments that have also been used in various EU countries to promote renewable fuels.
In parallel, the Ministry of Agriculture and Environment is responsible for analyzing the planning of cultivation areas and raw material supply industries For ethanol, the aim is to strengthen self-sufficiency and gradually reduce dependence on imports. The idea is that the growth of E10 production should be based on sustainable agriculture and not create excessive pressure on other land uses.
The Ministry of Science and Technology has the mission of coordinating with Industry and Trade the inspection of the quality of bioethanol and blended fuelswiftly penalizing violations of technical standards. Having independent laboratories and rigorous testing procedures is a fundamental requirement for maintaining the system's credibility.
At the same time, the relevant authorities have been asked to strengthen the public information campaigns on the characteristics of the E10including its compatibility with existing vehicles and its environmental benefits. As the public understands that the fuel switch also impacts health and air quality, willingness to accept it tends to increase.
Lessons for Spain and Europe in promoting the E10
Although the European institutional and economic environment differs from that of Vietnam, the latter's experience offers several useful lessons for those in Spain and the EU seeking to promote promotion of the E10 biofuel as part of the decarbonization of transport. The first is the importance of setting clear objectives and realistic timelines that send firm signals to the market.
Another lesson is the importance of collaboration between government agencies, energy companies, and the agricultural sector. The success of E10 depends not only on having favorable regulations, but also on... guarantee sufficient raw materials, blending infrastructure and adapted distribution networksas well as a robust and transparent quality control system.
Communication with the end user is another area where learning can be had. Providing clear and simple information about what E10 is, which vehicles can use it, and its effects on performance and emissions helps to... to avoid misunderstandings and unjustified rejectionsIn markets where the car remains a key part of daily mobility, building trust will be crucial.
Finally, experience shows that when economic incentives, technical reliability, and a broad network of supply points are combined, the E10 can quickly establish itself as a common alternative. to pure gasoline. For Spain and other European countries, closely observing these processes can help refine their own biofuel strategies and accelerate, with fewer setbacks, the path towards more sustainable transport.
