2001 Infiniti QX4
Placard on car says 26 psi cold
Tires say 32-49
Rear tire is set to 27 cold
Does this look under-inflated? What’s the lowest I should go?
this post was submitted on 18 Jul 2024
23 points (92.6% liked)
Mechanic Advice
277 readers
1 users here now
This community is for getting help with vehicle or other mechanical problems.
Remember, there are no stupid questions, we want everyone to feel welcome. If you don't want to answer a question that you think is silly, then just move on and keep it to yourself.
Rules:
- Don't be a dick
That is all.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
It gives you a fairly small gain in fuel mileage, but comes with several downsides.
For one, it's harder on your suspension system and gives you a rougher ride. This will wear out your struts faster, which is kind of expensive.
Next, it lowers the footprint of the tire with the ground. This means that you have decreased road grip and it will take longer to stop in an emergency.
Lastly, it means your tires won't last as long. The tread will wear uneven and it may cause tires that should last you 50,000 miles to only last 35,000, for instance. A rather large waste of money due to how expensive tires are, now.