Are you stocking up on fuel? Find out why you could be losing more than you think.

Many drivers opt to fill their car "up to capacity," meaning they fill it with fuel that will last them a few days, sometimes even weeks or months. While this may seem sensible, especially with rising fuel prices or when planning a long trip, this approach isn't always beneficial. It can entail unpredictable costs in the long run.

Storing fuel for extended periods can cause it to deteriorate, making it harder to start your vehicle and affecting its performance. Furthermore, if someone decides to use summer fuel in the middle of winter, they may encounter quality issues .

According to the website wyborkierowcow.pl, diesel fuel contains biocomponents – fatty acid methyl esters – which break down over time, creating acids and water. As a result, the substance can lose its properties, and in the worst-case scenario, mold and bacteria can develop, leading to engine damage.

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Although few drivers realize it, each type of fuel also has an expiration date . The estimated shelf life of diesel and gasoline is approximately six months . Over time, such oil can degrade.

When purchasing fuel in advance, it's important to store it in optimal conditions. Diesel fuel, in particular, can degrade if not stored in appropriate containers. Over time, this substance can begin to oxidize, forming deposits that can damage the engine.

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Storing raw materials in uncertified packaging is also a violation of regulations and can result in financial penalties. According to autokult.pl, fines can reach up to 3,000 PLN . In the event of a fire, insurance coverage may also be denied.

Regular refueling, tailored to the vehicle's needs, is more cost-effective. This approach ensures fresh fuel with better properties and minimizes the risk of fuel degradation. Periodically topping up the tank in appropriate amounts helps prevent filter clogging and engine starting problems , translating into long-term savings.

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It is also worth remembering that good quality petrol or diesel fuel improves engine operation and reduces the risk of costly repairs at a mechanic.

For those who still want to save money, choosing premium fuel may be an interesting option. It has a longer shelf life and is less susceptible to decomposition, meaning its quality doesn't deteriorate as quickly when stored in reserve. As we can read on the wyborkierowcow.pl website, it contains fewer biocomponents, which are responsible for the degradation processes in standard fuels.