What's loose steering and shocks replacement got to do with OP's question about PSI's for tires? Just cause I asked a few questions doesn't mean I know nothing, you forum troll..... You want water bed ride go ahead and stick with your 30 PSI. There's no right / wrong answer to the PSI's as it varies for the user. The car will respond to drivers input more slowly. This will actually make it more dangerous. Greater chance of getting an accident.OP is rocking a buick. If the sidewall is any less than a 70 I'd be suprised. 40+ PSI is silly. Advice is best when it comes from a solid base of knowledge ........http://forums.anandtech.com/showthread.php?t=2343409 :whiste:
What's loose steering and shocks replacement got to do with OP's question about PSI's for tires? Just cause I asked a few questions doesn't mean I know nothing, you forum troll..... You want water bed ride go ahead and stick with your 30 PSI. There's no right / wrong answer to the PSI's as it varies for the user. The car will respond to drivers input more slowly. This will actually make it more dangerous. Greater chance of getting an accident.
cheez
As long as it's within tire manufacturer's spec for the PSI the tires will be fine. You like the water bed ride, stick with your 30 PSI. I said this already.Overinflation runs just as much risk as underinflation. Contact patch.
There are NO right and wrong answers, but if you go too far that's when you get problems... i.e. wheel damage because you went over a pot hole with 28 PSI.Yes, there are right and wrong answers.
The rims were inspected by the technician after I went over the pot hole. The edge of the rim was bent due to the pot hole I ran over. That is simply what I am telling you. It doesn't require a rocket scientist or someone with extreme knowledge of cars to say this. You do not get to dictate who has the right to speak and who does not due to their level of expertise or experience.Your experience bending rims and not knowing how to even diagnose much less fix your own car makes some of your "suggestions" seem a bit difficult to validate.
This tells me you may have hard time dealing with people in the real world. You wouldn't say anything like this in person face to face, but it is easy to say such things over the internet. Just like hiding behind that couch of yours. Nice.I understand you are working from your own experience. If you read some of the other poster's suggestions you may realize yours are not good ones.
I'd rather be a troll than an idiot.
Would upping it to 35 PSI help with Gas Mileage, which is my main focus?
For a 2005 Buick Century, Buick's recommendation of 30 is perfectly fine and normal for the tire size and class of car. 30psi-35psi is a very common recommendation.
Do not go by the sidewall on the tire.
As much as I like the "Ignore the manufacturer....I always do XXXX so if I do it you 'll be fine too!!!" posts, stick with what the engineering staff at the manfufacturer recommend. If there is an issue with handling, I would suspect the culprit is that its an 8 year car on 8 year old suspension.
Not really. A negligible amount if all you are doing is highway.
If you want to maximize gas mileage, use a light foot and be smooth with your driving. Spend the least amount of time on the brake as you can.
Highway miles are pretty decent in that car and if you don't drive like an ass you should be able to hit 25mpg mixed driving.
Agreed. I average 25 or so mixed, 34 on highway
That's great.
You're doing better than my 4 banger Camry.
Here's my experience from running about 37-40PSI on all four tires in my civic:
Gas mileage, sometimes it goes up. It's hard to say. I've achieved higher maximum gas mileage on higher PSI values than ever before. However, I achieved basically the same gas mileage until about 6-9 months ago when I suddenly went up dramatically (Not sure what happened, to be honest). I ran at the 29-30 PSI recommendation in the car before and could never hit 35mpg on any tank. Running 37-40PSI, I've hit about 38MPG on maybe a few tanks. But, I've been running 37-40PSI for probably about 2 years now. Never hit 35MPG+ until about a year ago. So, I would say, gas mileage wise... YMMV. (derpa-pun-herp)
Traction wise... To me, it seemed like a very noticeable difference! (Maybe it's all in my head though?) It felt like I could immediately tell the difference. It was easier to burn out, far less grip in the corners, and by far way less grip IN THE RAIN. If you're concerned at all about tire grip, go with the recommended PSI. You're kind of trading your life for maybe a couple extra MPG. I don't know if that's worth it. I'm highly considering going back to 29-30PSI just to see if I can get the same MPG numbers on that inflation.
Also, OP, you might want to consider tire wear. It might wear out the tires faster from what I understand. Something to consider if you have expensive tires and it wears them out prematurely.
Agreed. I average 25 or so mixed, 34 on highway
/snip
I'd love to see sources showing that inflating your tires well above recommended PSI is going to lower tire wear.
Overinflation
Higher inflated tires cannot isolate road irregularities well and this leads to a harsher ride.
Tires can also be damaged more easily, lowering safety levels.
Safety - More susceptible to damage from external factors (potholes, debris)
Economy - Speeds up wear, in particular wear of central tread part
That's good, considering the EPA numbers...maybe too good...
http://www.fueleconomy.gov/feg/calculatorCompareSideBySidePopUp.jsp?column=1&id=20846
Maybe it's all in my head though?
Yeah... Exactly like I said...
Sure.....
I thought it was pretty much common sense that over-inflation decreases contact patch and thus reduces traction.
For a 2005 Buick Century, Buick's recommendation of 30 is perfectly fine and normal for the tire size and class of car. 30psi-35psi is a very common recommendation.
Do not go by the sidewall on the tire.
As much as I like the "Ignore the manufacturer....I always do XXXX so if I do it you 'll be fine too!!!" posts, stick with what the engineering staff at the manfufacturer recommend. If there is an issue with handling, I would suspect the culprit is that its an 8 year car on 8 year old suspension.
Sure.....
I thought it was pretty much common sense that over-inflation decreases contact patch and thus reduces traction.