ODWms
Member
I've been running 50 psi since the beginning (2018), and I can confirm no issues with tire wear or anything else. My first set lasted more than 50k miles. Second set are at 39k, and counting. I fully expect to go over 50k again.
You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
You must never exceed 10mph with that kinds of tire wear.I've been running 50 psi since the beginning (2018), and I can confirm no issues with tire wear or anything else. My first set lasted more than 50k miles. Second set are at 39k, and counting. I fully expect to go over 50k again.
No kidding. No way the oem tires are still legal after 50k miles…. If you are lucky you’ll get maybe 35k miles tops. No way over 50kYou must never exceed 10mph with that kinds of tire wear.
50k on 20" Pilot Sport 4S?I've been running 50 psi since the beginning (2018), and I can confirm no issues with tire wear or anything else. My first set lasted more than 50k miles. Second set are at 39k, and counting. I fully expect to go over 50k again.
Did not know there was a change.My 2018 came with the original "T0" spec MXM4s, and I now have the newer "T1" spec. The originals barely lasted 30k miles. The current ones have 45k on them, and only now starting to look like they will need to be replaced soon. I've tried to keep ~42 psi cold since new.
Google search gave me an answer right here on TMC:So what is difference between the T1 and T0?
T0 means it’s been designed to the specs set out by the original manufacturer for use on the car. T is Tesla and 0 is the first revision. T1 would be more modern design etc. Sometimes keeping a T0 on an older Tesla would be the right thing to do for the age rather than just going for the newest T revision.
Any UHP tire in combination with a skinny sidewall is going to result in a rough ride. Not sure dropping the pressure to 38 will have much affect but try it.I just got a new Model Y Standard Range. It has 19" Pirelli Scorpions. I find the ride way too harsh on even the smallest road imperfections, especially in my city where there has been zero road maintenance for 30 years. I figure the 42 psi number was chosen for EPA range testing and is necessary for maximum loading. That means up to five fat people and luggage for all. Plus a trailer at 350 lbs tongue weight. Another factor is the max speed rating of 217 kph. I'm going to try out 38 psi. I can't see how that would be a problem with just my skinny wife and I tooling around at 110 kph or less.
I've had a few Mercedes cars and have seen the label that shows different tire pressures depending on the quantity of passengers and luggage on board. You also make a good point about the UHP tires. Perhaps I won't see any meaningful improvement by adjusting pressure with these tires. I am going to try 38psi on a rough road test and also on a smooth, flat highway. I will then raise the pressure 4 psi and repeat. I will also record the power consumption on both runs and report back.Any UHP tire in combination with a skinny sidewall is going to result in a rough ride. Not sure dropping the pressure to 38 will have much affect but try it.
Correct about low combined weight usually does Ok at lower pressures. My wife's SLK 130 (R172) has max recommended pressure on the door sticker but when you open the gas door there is a different set. Recommended pressures for both lightly loaded and heavily loaded. Because Germans.
Funny that you mention picking routes for the best ride. I have been doing that for a couple years now as the roads around here further deteriorate. Yet taxes keep going up.I did try out 38 psi today. The ride was still firm but the worst harshness was gone. No more minor rattles from road imperfections. Handling was still very good but not as responsive as before. I didn't test consumption, but it felt like it might degrade due to the tires working harder. It the end, I inflated them back to 42 psi, thinking it is best overall and then the sharper handling returned. You just have to pick your routes carefully and the ride will be fine. I think Tesla chose those pressures for good reason. The door jam sticker is usually right nowadays.