What to Do If You Have Non-OEM Tire Size UNVERIFIED
Understanding the implications of using non-OEM tire sizes on your vehicle.
There's no confirmed answer to this yet. Below is what is and isn't known — we'd rather be honest than invent a number or a spec. This becomes a full guide the moment we can confirm it; for now, your owner's manual is the authority on your specific car.
Understanding Non-OEM Tire Sizes
Non-OEM (Original Equipment Manufacturer) tire sizes refer to tires that differ from the specifications recommended by the vehicle manufacturer. While it is common for vehicle owners to choose different tire sizes for various reasons, such as performance, aesthetics, or availability, it is essential to understand the potential impacts on your vehicle's performance and safety.
Implications of Using Non-OEM Tires
Using non-OEM tire sizes can affect your vehicle's handling, fuel economy, and ride comfort. Larger tires may provide better traction but can also lead to increased rolling resistance, which may decrease fuel efficiency. Conversely, smaller tires may improve fuel economy but could compromise handling and stability. Additionally, non-OEM tires can affect the accuracy of your speedometer and odometer, leading to potential legal and safety issues.
What Isn't Confirmed
The specific impacts of non-OEM tire sizes can vary widely depending on the make and model of your vehicle, as well as the specific tire size chosen. There are no universal guidelines that apply to all vehicles, so the effects can differ significantly.
Where to Verify
For the most accurate information regarding tire sizes and their implications, consult your vehicle's owner's manual. Additionally, consider reaching out to a tire professional or your vehicle manufacturer for guidance tailored to your specific situation.
EPA/DOE FuelEconomy.gov data retrieved 2026-10-25.