Not Logged In Log In   Sign Up   Points Leaders
Follow Us    4:12 PM

Message Forum - Read Message

Category: Fuel Economy > Topics Add to favorite topics   Post new topicPost New Topic
Author Topic: Do higher tire pressures help mpg? Back to Topics
iaqxf

Rookie Author
Ohio

Posts:7
Points:265
Joined:Dec 2004
Message Posted: May 19, 2011 6:29:26 AM


.............................................

tires at 10psi = 3.7% increase in consumption

tires at 30psi = 1.2% increase in consumption

Control, 35psi (manufacturer recomendation)

tires at 40psi = 6.2% decrease in consumption

tires at 60psi = 7.6% decrease in consumption

From Mythbusters test....


[Edited by: iaqxf at 5/19/2011 6:31:29 AM EST]
REPLIES (newest first) Post a Reply
Profile Pic
hoopitup2000
Champion Author Virginia

Posts:1,866
Points:584,010
Joined:Jul 2013
Message Posted: Jan 18, 2015 11:09:22 PM

Yes
Profile Pic
GLM4205
Champion Author Toledo

Posts:6,778
Points:1,449,710
Joined:Dec 2010
Message Posted: Jan 18, 2015 9:50:57 PM

I fill my tires, at the manufacturer's recommended pressure.
Profile Pic
HideMKE
Champion Author Milwaukee

Posts:3,020
Points:728,975
Joined:Mar 2012
Message Posted: Jan 17, 2015 11:15:30 AM

yes
Profile Pic
Floridaman2013
Champion Author Florida

Posts:2,876
Points:619,765
Joined:May 2013
Message Posted: Jan 17, 2015 6:16:31 AM

I always keep my tires at the sidewall max less 3-5 PSI for heat build up. Tires last long, car/truck handles great, and fuel mileage is at the max. Don't care if the ride is a little stiffer as we didn't buy these vehicles for a mushy ride.
Profile Pic
twt
Champion Author Virginia Beach

Posts:13,650
Points:1,721,360
Joined:Mar 2005
Message Posted: Jan 17, 2015 5:41:39 AM

I fill my tires, at the manufacturer's recommended pressure.
Profile Pic
carinthuist
Champion Author San Francisco

Posts:5,867
Points:998,100
Joined:Mar 2012
Message Posted: Jan 16, 2015 10:38:16 PM

yes
Profile Pic
k7lvo
Sophomore Author Medford

Posts:238
Points:221,735
Joined:Jun 2012
Message Posted: Jan 16, 2015 10:34:45 AM

Up to a point. Over-inflation will improve gas mileage some, but tire mileage will suffer. Traction will suffer, too, leading to large expense.
Profile Pic
pilotdlh
Champion Author Minnesota

Posts:1,064
Points:952,135
Joined:Nov 2011
Message Posted: Jan 15, 2015 11:59:58 AM

Yes.
That's why tire pressure monitors are mandated on cars now.
Profile Pic
46chief
Champion Author Indiana

Posts:6,086
Points:2,527,915
Joined:May 2006
Message Posted: Jan 14, 2015 3:54:17 PM

A little, maybe.
Profile Pic
dontuknowOH
Champion Author Ohio

Posts:3,874
Points:66,545
Joined:Aug 2009
Message Posted: Jan 13, 2015 10:46:32 AM

Anyone that has ever roller skated or owned their own skates would probably know that wheels, when they are more round and also firm in construction, those wheels roll better.

The other part is the type of bearings, wheel material used, and then the floor(skating surface)V/S energy used/total weight involved. The worst problem is the small size of those skate wheel diameters in relation to bulk above or rather what total weight is on top of them rolling in motion.

There will always be some drivers out rolling around with no thoughts about vehicle tire pressure as a mind set. Bicycle riders soon stay clued in on the importance of correct tire pressure. Drivers that are counting their Fuel Pennies learn or don't care to. I routinely check my vehicles and leave those skates alone at my age, enjoy the memories/pennies saved.
Profile Pic
badbobKY
Champion Author Lexington

Posts:1,146
Points:31,845
Joined:Aug 2013
Message Posted: Jan 13, 2015 10:21:28 AM

no
Profile Pic
carinthuist
Champion Author San Francisco

Posts:5,867
Points:998,100
Joined:Mar 2012
Message Posted: Jan 13, 2015 9:47:55 AM

yes
Profile Pic
WEDDY
Champion Author Phoenix

Posts:6,502
Points:1,775,645
Joined:Oct 2009
Message Posted: Jan 13, 2015 9:01:50 AM

Yes
Profile Pic
xtremecheap
Champion Author Arkansas

Posts:1,173
Points:386,475
Joined:Jun 2011
Message Posted: Jan 11, 2015 7:05:35 PM

Yes try pushing your auto and then let some air out of the tires and try again.
Over inflation and under inflation both causes premature tire wear. Over wears the center, and under wears the sides. I like to era on the side of over inflation(1-5 psi) to what the vehicle's recommended psi.
If a lot of extra weight is being carried, I would go even a little higher.
Profile Pic
GBMAX
Champion Author Phoenix

Posts:7,702
Points:2,624,945
Joined:Feb 2005
Message Posted: Jan 11, 2015 5:23:04 PM

close
Profile Pic
hoopitup2000
Champion Author Virginia

Posts:1,866
Points:584,010
Joined:Jul 2013
Message Posted: Jan 11, 2015 3:59:12 PM

Yes. . . .
Profile Pic
97PearlCat
Champion Author Tulsa

Posts:7,169
Points:1,574,420
Joined:Dec 2010
Message Posted: Jan 11, 2015 3:39:29 PM

Yes it helps.
Profile Pic
lilmx5guy
Sophomore Author Scranton

Posts:161
Points:407,180
Joined:Nov 2011
Message Posted: Jan 11, 2015 3:24:47 PM

Yes, but could decrease the tires life due to center wearing out prematurely, negating the gain in MPG.
Profile Pic
Nuzan
All-Star Author Nevada

Posts:975
Points:706,525
Joined:Jun 2012
Message Posted: Nov 23, 2014 3:19:40 PM

Yes
Profile Pic
JohnCur
Veteran Author New Jersey

Posts:462
Points:535,260
Joined:Feb 2013
Message Posted: Nov 19, 2014 2:31:24 PM

run at 35 vs 32 don't realnotice much improvement
Profile Pic
HideMKE
Champion Author Milwaukee

Posts:3,020
Points:728,975
Joined:Mar 2012
Message Posted: Nov 19, 2014 12:40:10 PM

yes... but just 5-10% higher psi
Profile Pic
FrankLee1
Champion Author Minnesota

Posts:1,000
Points:40,225
Joined:Feb 2013
Message Posted: Nov 19, 2014 11:40:55 AM

pinbuster's post is not accurate.
Profile Pic
pinbuster2005
Champion Author New Hampshire

Posts:5,514
Points:1,700,165
Joined:Oct 2005
Message Posted: Nov 19, 2014 4:24:19 AM

Sure it might boost your mileage a little bit but the tires aren't going to last as long and they aren't going to wear even and that can cause problems. Also if the tire is at max when it's cold the pressure increases as your going down the road and the tire is warm so it then could cause a blow out that could result in an accident.
Profile Pic
GasMiser718
Champion Author Detroit

Posts:3,891
Points:264,855
Joined:Apr 2006
Message Posted: Nov 16, 2014 7:53:25 AM

No I think it the opposite. Manufacturers specs that what I follow.
Profile Pic
Floridaman2013
Champion Author Florida

Posts:2,876
Points:619,765
Joined:May 2013
Message Posted: Nov 12, 2014 8:21:17 AM

With the new larger size tires now on most SUVs and trucks, my tire pressure is kept at 45 PSI. Better handling, mileage, tire wear. Just a little rougher on the bumps. Hate soft tires; don't like sliding around corners. No matter the tire size, I never go up to max if about to make a long trip in hot weather. I keep them 2 pounds below max cold pressure. It helps nowadays with a tire pressure monitoring system.
Profile Pic
hoopitup2000
Champion Author Virginia

Posts:1,866
Points:584,010
Joined:Jul 2013
Message Posted: Nov 12, 2014 7:45:15 AM

Manufacturers key concern is comfort & safety when deciding on their recommendation. Going higher can increase mileage, especially once one learns how to maximize coasting skills.
Profile Pic
GasMiser718
Champion Author Detroit

Posts:3,891
Points:264,855
Joined:Apr 2006
Message Posted: Nov 12, 2014 1:34:48 AM

I wouldn't think so, that's why the manufacturer have recommended tire pressures.
Profile Pic
OilerFan
Champion Author Tulsa

Posts:16,782
Points:3,044,135
Joined:Aug 2005
Message Posted: Nov 7, 2014 7:30:31 AM

I would stick with manufacturer's recommendations for pressure. That'll make tires last longer.
Profile Pic
Ratso
Champion Author Ohio

Posts:23,721
Points:3,422,495
Joined:Sep 2003
Message Posted: Nov 7, 2014 5:58:34 AM

it helps, but decreases tire wear...whatever floats your boat !
Profile Pic
FrankLee1
Champion Author Minnesota

Posts:1,000
Points:40,225
Joined:Feb 2013
Message Posted: Nov 7, 2014 5:51:07 AM

I run about 45 psi in all my cars and trucks.
Profile Pic
twt
Champion Author Virginia Beach

Posts:13,650
Points:1,721,360
Joined:Mar 2005
Message Posted: Nov 7, 2014 2:56:52 AM

Just what we need here. Another "EXPERT". Use the recommended TIRE PRESSURE!
Profile Pic
Bad_Petroleum
Champion Author Miami

Posts:111,544
Points:872,430
Joined:Jan 2013
Message Posted: Nov 6, 2014 1:49:12 PM

My Honda says 32 PSI on the door frame and that IS what I use. Today for the 1st time i checked my new, but 3 months old Accord and all tires except one where 2 pounds shy, NO biggie..All taken care in my drive way with my own gages and air pump.

[Edited by: Bad_Petroleum at 11/6/2014 1:49:43 PM EST]
Profile Pic
Mikeyl
Champion Author Cleveland

Posts:9,254
Points:1,903,040
Joined:Aug 2004
Message Posted: Nov 5, 2014 10:50:52 PM

Plus, remember, if a tire is at 35 psi (a fairly average psi rating), it will increase with use. So, on a warm day going along a highway, it may go up an additional 5 psi.

Over inflating can cause a catastrophic blowout which can cause a deadly accident. Why risk it?
Profile Pic
selvan777
Rookie Author Sacramento

Posts:28
Points:8,700
Joined:Feb 2013
Message Posted: Nov 5, 2014 4:08:52 PM

True but it's not safe, you'll have less traction, mainly, not to mention a shorten life span due to uneven wear.

But I've always added about 10 extra pounds to my low-pros after picking up the car from having them balanced at the shop, they always set it back to manufacturer specs, I guess it's an insurance thing of theirs.

Oh, I should mention, I add those extra pounds so the low-pros wear more evenly, which they do. Remember, the manufacture suggested psi is only for the stock tires.

[Edited by: selvan777 at 11/5/2014 4:13:59 PM EST]
Profile Pic
one800rv
Rookie Author Florida

Posts:85
Points:36,790
Joined:Jan 2013
Message Posted: Nov 5, 2014 3:13:30 PM

Don't know about the fuel savings but it makes the tires last longer and have fewer flat tires by inflating to the VEHICLE'S recommended psi. Not the psi on the tire!
Profile Pic
GasMiser718
Champion Author Detroit

Posts:3,891
Points:264,855
Joined:Apr 2006
Message Posted: Nov 5, 2014 1:34:46 PM

Again, I just put in what the manufacture says to.
Profile Pic
hoopitup2000
Champion Author Virginia

Posts:1,866
Points:584,010
Joined:Jul 2013
Message Posted: Nov 4, 2014 6:31:36 AM

Yes . . . .
Profile Pic
proudvet1
Sophomore Author Atlanta

Posts:110
Points:669,080
Joined:May 2012
Message Posted: Nov 3, 2014 11:19:15 PM

Yes
Profile Pic
LibertyGuardian
All-Star Author Arizona

Posts:534
Points:72,800
Joined:Oct 2014
Message Posted: Nov 3, 2014 8:04:40 AM

Perhaps but I've found that in most instances for every advantage there's a disadvantage and excessive tire pressure is most certainly one.

I've gone with the manufacture's recommendations for the past 60 years I've been driving and it's worked just fine for us so I believe I'll just stay the course.

[Edited by: LibertyGuardian at 11/3/2014 8:05:36 AM EST]
Profile Pic
Jackson126
Champion Author Virginia

Posts:1,204
Points:381,690
Joined:May 2014
Message Posted: Nov 3, 2014 7:00:21 AM

yes
Profile Pic
xbAG
Champion Author California

Posts:2,755
Points:854,840
Joined:Jan 2012
Message Posted: Nov 1, 2014 8:50:38 PM

I have NO clue.
Profile Pic
luvmyrv
Champion Author Winnipeg

Posts:1,339
Points:603,205
Joined:Dec 2012
Message Posted: Nov 1, 2014 3:55:36 PM

The increase you get in mpg wont make up for the increased speed at which your tires will wear out and need to be replaced.
Profile Pic
RealtorJeff
All-Star Author San Diego

Posts:729
Points:640,900
Joined:Apr 2005
Message Posted: Nov 1, 2014 2:23:56 PM

That's what I have been told
Profile Pic
carinthuist
Champion Author San Francisco

Posts:5,867
Points:998,100
Joined:Mar 2012
Message Posted: Nov 1, 2014 1:34:03 PM

yes
Profile Pic
GLM4205
Champion Author Toledo

Posts:6,778
Points:1,449,710
Joined:Dec 2010
Message Posted: Nov 1, 2014 12:44:50 PM

Use manufacturers recommendations.
Profile Pic
dontuknowOH
Champion Author Ohio

Posts:3,874
Points:66,545
Joined:Aug 2009
Message Posted: Nov 1, 2014 10:40:24 AM

Whenever I do a familiar interstate, mostly during summer days, I then notice the majority of vehicles driving the higher speeds. Notice they all have rounder formation tires. meaning seldom do I see the bottom small bulge(footprint area), that to me says hard higher tire travel pressure.

Trucks, Suvs, Vans, some large cars firm/rounder, pressure I don't know about, but they the owners/drivers seem to realize that helps mileage. The local comparison I see can be nasty bulges, mini vans the worst, some older trucks and cars with one or more low tires driving city. 29....32% guess.(unaware)ness.......! Duh....!

Just saying about 85% the frequent interstate drivers must know good/higher tire inflation counts for better mileage, I just see many not few there traveling, passing with firmer tires rolling, 24-7 fashion, anytime! Stay Safe!
Profile Pic
MertieMan
Champion Author Lexington

Posts:17,894
Points:3,638,235
Joined:May 2005
Message Posted: Nov 1, 2014 8:48:19 AM

Safety is of concern here, only run what is recommended in the tire, and don't risk your life for control of any vehicle by violating safety precautions.
Profile Pic
PaylessKY
Champion Author Kentucky

Posts:11,850
Points:2,322,370
Joined:Oct 2008
Message Posted: Oct 26, 2014 1:48:27 PM

Go by what the tire placard on you vehicle says.
Profile Pic
puddy
Champion Author Wisconsin

Posts:16,816
Points:4,009,575
Joined:Dec 2003
Message Posted: Oct 25, 2014 7:47:41 AM

Yes
Profile Pic
twt
Champion Author Virginia Beach

Posts:13,650
Points:1,721,360
Joined:Mar 2005
Message Posted: Oct 25, 2014 5:10:43 AM

Just what we need. Another "EXPERT" that doesn't have a clue.
Profile Pic
Mikeyy1960
All-Star Author Cape Coral

Posts:599
Points:226,910
Joined:Aug 2014
Message Posted: Oct 24, 2014 7:50:28 PM

to answer the question, yes they do
Post a reply Back to Topics