I have been running them at 40 PSI. Didn't intentionally set them higher, got the car from the dealer, checked the tires a few weeks later and they were at 41, so I basically left them there. Recently found the pressure at 37, put some air in to bring them up to 40.PaulScott wrote:Stoaty, I'm very impressed with your efficiency and agree with your reasons, etc. Just curious, what's the pressure in your tires?
Did my usual work commute today (47 miles) using the Energy Screen reading for miles/KWh for this trip. While there were a couple of minor variations in traffic, it was basically similar. My past results for the commute when coasting down long hills were 6.1 miles/KWh on the energy screen. Today I used cruise control on the downhill runs for both sides of Sepulveda Pass. Speeds were 45-55 MPH depending on traffic. Got a fair amount of regen and ended up with a record (for me) 6.4 miles/KWh for the trip. That is a 4.9% increase in efficiency, which I didn't think was possible given my already conservative driving style. Took a little extra time, not that much.
From now on I will be using cruise control on longer downhill runs and a slow speed as above so the energy goes back to the battery, rather than fighting wind resistance.