Across the various trim levels and configurations of the 2018 Hyundai Sonata, three different tires are used. The smallest tires and wheels belong to the SE and ECO variants, measuring at P205/65R16 atop 16 inch rims. The neXTSize up is the P215/55R17 tires on 17 rims, which are present on the SEL, SEL+, Sport, and Sport+ trims. Finally, the largest P235/45R18 tires on 18 inch wheels are used on the Sport 2.0T, Limited 2.0T, and Limited 2.0T+. As with other "P" rated tires, Your inflation range is between 32 and 35 pounds per square inch for the standard load (SL) variants; extra load (XL) styles will use an extra 10 or so pounds. You'll want to stay near the bottom of the range under normal operation, but near the top when You're nearing Your payload capacity, which in the '18 Sonata is 1102 to 1247 pounds.
Mara D.
January 2, 2020
The base model wheel size for the 2018 Hyundai Sonata is 16 -inch. The tire size for the 2018 Hyundai Sonata is 205/65R16. The recommended tire pressure for the 2018 Hyundai Sonata is 34 psi.
Jack
June 19, 2023
Can i put 18’s on a sonata eco?
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