Separate names with a comma.
Discussion in 'Model 3' started by garu, Aug 1, 2020.
Has anyone tested how much efficiency you gain using 50 or 45 psi versus 40?
Edit: Actually its probably not much, according to studys done on ICE cars
How Does Tire Pressure Affect Fuel Economy?
Gas Mileage Tips - Vehicle Maintenance
Personally, I experience a noticable difference.
An electric car is (roughly) 3 times more efficient than a comparable ICE car. A change in tire pressure that equates to a 2% efficiency increase (hardly noticable) in an ICE car would have a 6% efficiency increase (very noticable) in an electric car, with all else being equal. The fact, that electric cars are usually heavier than ICE cars would make the difference even greater.
Every absolute change in efficiency is a much greater relative change the more efficient the car already is. That is why there is such a big focus on aero, drivetrain and tires with electric cars. Take a sip from an espresso and it is half empty, take a sip from a gallon of milk and you won't even notice.
According to Elon the difference between 2.9 bar and 3.1 bar isnt that big, hence he recommended 2.9 for comfort.
I think once you run tires at 2.5 bar or some ICE-like pressure you definetely will see a range decrease of a few %.
I notice a difference as well.
It’s really personal preference. If you want more efficiency, you get a more rough ride.
Softer ride, less efficient.
These days, I usually side on comfort. There is a loss in efficiency, but I have lots of range, so it’s no big deal b