Extended-Range Electric Vehicles (EREVs) Offer Surprisingly Low Maintenance, Rivaling Full EVs





The automotive industry is witnessing a significant shift towards more sustainable and efficient transportation solutions. Extended-Range Electric Vehicles (EREVs), such as Xiaomi's newly launched SkyNomad N70 and N90 crossovers, are redefining expectations for vehicle maintenance. These models, part of Xiaomi's sub-brand focusing on family-oriented comfort, integrate a 1.5-liter turbocharged gasoline engine that functions as a range extender, offering the advantages of electric mobility without the common concern of limited range.
A notable feature of these EREVs is their remarkably long service intervals. Xiaomi has announced that the N70 and N90 will only require an oil change every three years or after 30,000 kilometers of engine operation. This extends beyond the initial service recommendation of one year or 10,000 kilometers. This extended interval mirrors the maintenance schedule of competitors like Li Auto's L8 and L9 EREV crossovers, which also boast a three-year or 30,000-kilometer oil change cycle. This innovative approach to maintenance significantly narrows the cost difference between EREVs and conventional electric vehicles, as traditional gasoline or hybrid cars typically demand oil changes much more frequently, generally every 3,000 to 10,000 miles.
The extended maintenance period for EREVs is largely attributed to the nature of their operation. Unlike traditional hybrids, EREVs can complete considerable distances relying solely on electric power, meaning the internal combustion engine is used less frequently, resulting in reduced wear and tear. This allows for longer intervals between oil changes and other engine-related servicing. Companies like Xiaomi and Li Auto have reportedly partnered with Shell to develop specialized low-viscosity oils and have implemented internal design modifications to their range-extending engines to combat oil oxidation and moisture contamination, thereby facilitating these prolonged service schedules. As the market for EREVs expands, with models like Scout's Traveler and Terra soon entering the U.S. market, consumers can anticipate a future where vehicle ownership is not only more environmentally conscious but also more convenient and cost-effective.
The advancement in EREV technology marks a crucial step towards a more sustainable and economically viable automotive future. By significantly extending maintenance intervals, these vehicles offer a compelling balance between environmental responsibility and practical ownership, proving that innovation can indeed simplify our lives while benefiting the planet.