A Hyundai Ioniq Hybrid has reportedly reached 317,935 miles while still running with its original engine, transmission and hybrid battery. TikToker and YouTuber Taylor Phase says his experience shows how careful maintenance can help a modern car accumulate hundreds of thousands of miles.
Hyundai Ioniq Hybrid Passes 300,000 Miles
Phase recently shared his experience with his Hyundai Ioniq Hybrid, highlighting the car’s mileage and the major components that remain original. The vehicle has more than 300,000 miles on its odometer, with the exact figure listed as 317,935 miles.
According to Phase, the car still uses its original transmission, engine and hybrid battery. He also argues that other owners can potentially reach 500,000 miles with the same engine and transmission by following proper maintenance practices.
How Phase Maintains His High-Mileage Ioniq
One of Phase’s main recommendations involves choosing the right engine oil. He says AMSOIL is his preferred brand and explains that he varies the oil viscosity depending on temperatures.
The car calls for 0W-20 oil, which Phase uses under normal conditions. During hotter months, however, he switches to 5W-30 because he says oil becomes thinner under extreme heat.
Phase also regularly checks the vehicle’s coolant level and uses test strips to check its pH. He says the coolant level is currently dropping, although he has not yet identified the specific cause.
He replaces the spark plugs every 100,000 miles and manually changes the brake and clutch fluids, using a turkey baster to remove the old fluid. Phase’s other recommendation is to drive gently by avoiding excessive acceleration and harsh braking.
What Hyundai’s Maintenance Guidelines Say
Phase’s mileage claims are supported by the condition of his vehicle, but the maintenance intervals outlined by Hyundai provide additional context for his recommendations.
The owner’s manual recommends 0W-20 oil for better fuel economy, while 5W-30 or higher can help keep the engine lubricated in hotter temperatures.
The manual also calls for spark plug replacement every 97,500 miles. Phase’s practice of replacing them every 100,000 miles is therefore close to the manufacturer’s stated interval.
One Maintenance Claim Does Not Match Hyundai’s Schedule
There is a significant difference between Phase’s maintenance routine and Hyundai’s guidelines when it comes to the hybrid starter and generator belt, or HSG belt.
Phase says the original HSG belt is still being used on his Ioniq. Hyundai, however, says the belt should be replaced every 67,500 miles or 48 months, meaning the belt on Phase’s car is beyond that replacement interval.
Despite that discrepancy, the Hyundai Ioniq Hybrid has accumulated 317,935 miles while retaining its original engine, transmission and hybrid battery, according to Phase.
