Is it possible to replace 20" tires with 18" wheels?

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FitEV2020

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Hi everyone! I have a quick question for anyone with experience in tire and wheel swaps. I am thinking about swapping my 3 LT AWD 20" tires with 18" wheels. Is this possible? I want to prioritize range. Is this swap possible without affecting things like the odometer, speedometer, and other systems?
 
Are you considering any specific tire sizes or brands for the 18" wheels? Also, have you checked whether the swap might affect the vehicle's handling or ride quality?
 
FitEV2020 said:
Hi everyone! I have a quick question for anyone with experience in tire and wheel swaps. I am thinking about swapping my 3 LT AWD 20" tires with 18" wheels. Is this possible? I want to prioritize range. Is this swap possible without affecting things like the odometer, speedometer, and other systems?
Click to expand...
Why not? Just make sure the outer diameter of the tires is close to the original size. This is the only way you could mess with your odometer and speedometer.
 
Before swapping to 18-inch wheels, make sure they're compatible with your vehicle. First, check the bolt pattern – it must match your car's. Also consider the offset, as this determines how the wheel sits. While this may not aply to the Equinox, it's always a good idea to ensure the load rating is sufficient to handle your vehicle's weight. Remember not all 18-inch wheels will fit your car's hubs or brakes.
 
Sorry - but I don't see how changing to 18" wheels will improve range. Also - making that change will probably cause the speedometer and odometer to provide incorrect readings. These differences will make it look like you're traveling a greater distance with the same power but you will not be.
 
Last edited:
gomtuu said:
Sorry - but I don't see how changing to 18" wheels will improve range. Also - making that change will probably cause the speedometer and odometer to provide incorrect readings. These differences will make it look like you're traveling a greater distance with the same power but you will not be.
Click to expand...
You're right about the speedometer/odometer thing, but the 18" wheels are usually paired with tires that keep the overall diameter similar to the stock setup. The range improvement comes from the smaller, lighter wheels, which reduce rolling resistance. It's not about changing the diameter.

Sources:

https://middle-east.michelin.com/en/auto/advice/tyre-basics/rolling-resistance#:~:text=Low Rolling Resistance tyres – also,dissipation – and therefore save fuel.

https://www.signaturewheel.com/single-post/the-secret-of-rotating-weight-vs-static-weight#:~:text=Well, that goes for wheels,pounds removed from static weight.
 

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