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this post was submitted on 03 Jun 2024
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It's absolutely true. I used to drive my 6,000 lb squarebody all over the Oregon sand dunes in 2wd because it had big, wide tires that I'd drop down to 10 PSI. This had a stock small block V8 that probably put out a whopping 150HP.
Just tire pressure alone can make or break even the most capable vehicle. You need to float on the surface, not dig in. Street tire pressure will make your vehicle dig in and get stuck immediately regardless of weight or horsepower.
At what PSI are you almost just driving on the rims? I get that on sand that wouldn't be an issue, but 10psi sounds like rims on a road to me?
I don't have an exact number but it was fine with my tires. Newer, low profile tires can't do it because the sidewalls are so short but the tires on the CT look meaty enough to handle these low pressures.
The issue is more about popping the bead off the wheel than your wheel touching the ground.
I'd be surprised if the Tesla would even let you run on 10 psi. I bet it'd throw an error message and brick the accelerator.