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Mar. 28, 2026 A new solar breakthrough may overcome a long-standing efficiency barrier. Researchers used a “spin-flip” metal complex to capture and multiply energy from sunlight through singlet ...

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A fuel-efficient car protects its owner against fluctuating fuel prices. Small cars tend to be most efficient due to their low weight and favorable aerodynamics, but some mid-size sedans and SUVs also ...

Generally, Fuel prices revise at 6 a.m. daily in India. Indian Oil, Bharat Petroleum, Hindustan Petroleum (HP), Reliance & IGL are the popular fuel companies in India that have the most fuel stations.

Your fuel pump pushes fuel from your gas tank through your fuel lines to your engine. Then, your fuel injectors are responsible for spraying just the right amount of gas into your combustion chambers ...

Lucas Oil makes a variety of powerful fuel additives and their products are some of the most commonly used for comprehensive fuel treatments. For nearly three decades, Lucas Oil has been one of the go ...

Currently, petrol is retailing at Rs - a litre in Delhi, and diesel is priced at Rs 87.67. In Mumbai, Chennai and Kolkata petrol costs Rs -, Rs - and Rs - respectively. On the other hand, diesel is ...

A fuel cell is a device that generates electric energy through electrochemical reactions between an oxidizing agent and a fuel – a material that stores energy in chemical form. Both species are not ...

Petrol and diesel prices had been on a steady decline for most of 2025, but the cost of filling up your car is slowly beginning to creep up once more. In January 2026, the price per litre for petrol ...

Michael joined Which? in 2017 and is the senior researcher on the Cars team. He’s passionate about improving safety and fairness for all road users — from drivers to pedestrians. Supermarket petrol ...

Katie Genter is a digital nomad who has traveled full time since June 2017. She writes and edits stories about points and miles, and loyalty programs, often letting her personal experiences color ...