Recommended tire pressure for IS350 Sport?
#1
Rookie
Thread Starter
Join Date: Jan 2006
Location: adad
Posts: 83
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I’m curious what others with the IS350 sport have there tire pressure set at.
I checked my tires today and found that all four were at 45psi (too high).
FWIW, the owners manual say’s 35 for the front and 38 for the back.
I was really surprised how much the ride smoothed out when I set mine at 37 front 40 in the back today. Night & day difference. I’m still experimenting.
I think I’ll try 40 in the front and 43 in the back next and see which set up I like best.
Tire pressure makes a huge difference in ride characteristics of the 350 with 18,s. Check yours out!
I checked my tires today and found that all four were at 45psi (too high).
FWIW, the owners manual say’s 35 for the front and 38 for the back.
I was really surprised how much the ride smoothed out when I set mine at 37 front 40 in the back today. Night & day difference. I’m still experimenting.
I think I’ll try 40 in the front and 43 in the back next and see which set up I like best.
Tire pressure makes a huge difference in ride characteristics of the 350 with 18,s. Check yours out!
![Rock On](https://www.clublexus.com/forums/images/smilies/rockon.gif)
#3
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
i was running on 50 all around...for some reason when i saw 50psi max on the tire, i figured i needed it at 50. now its about 40 around the car. maybe still too much. but i wonder how much going to 35-38 will change in gas mileage versus the 50 i was at.
#4
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Originally Posted by Leechiro
i was running on 50 all around...for some reason when i saw 50psi max on the tire, i figured i needed it at 50. now its about 40 around the car. maybe still too much. but i wonder how much going to 35-38 will change in gas mileage versus the 50 i was at.
#6
Super Moderator
![](https://www.clublexus.com/forums/images/ranks/rank-smod2.gif)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Seeing as someone made the mistake of confusing max pressure with recommended pressure, I thought I'd mention another common newbie mistake. Always check your tire pressure when the tires are cold, e.g., driven less than a mile. If you do it when they are warm, you'll end up with too little air in the tire. The logistics of this were difficult when I was getting my air at the filling station, but now that you can buy tire inflators for $20 at WalMart, it's easy to check them first thing in the morning before the car has even been started.
#7
Rookie
Thread Starter
Join Date: Jan 2006
Location: adad
Posts: 83
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Originally Posted by Leechiro
i was running on 50 all around...for some reason when i saw 50psi max on the tire, i figured i needed it at 50. now its about 40 around the car. maybe still too much. but i wonder how much going to 35-38 will change in gas mileage versus the 50 i was at.
Which in theory give you better gas milage?
Trending Topics
#8
Lexus Fanatic
iTrader: (1)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Originally Posted by IXLRS
Which in theory give you better gas milage?
#9
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Originally Posted by Bichon
Seeing as someone made the mistake of confusing max pressure with recommended pressure, I thought I'd mention another common newbie mistake. Always check your tire pressure when the tires are cold, e.g., driven less than a mile. If you do it when they are warm, you'll end up with too little air in the tire. The logistics of this were difficult when I was getting my air at the filling station, but now that you can buy tire inflators for $20 at WalMart, it's easy to check them first thing in the morning before the car has even been started.
Originally Posted by IXLRS
Which in theory give you better gas milage?
#12
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
yah, the theory is that the higher the psi, the better the gas mileage, but its prob true that the diff from 35/37 to 45/50 wont even be noticable. but to some, little is better than nothing these days.
Thread
Thread Starter
Forum
Replies
Last Post