05-22-2011, 11:37 PM
|
#81 (permalink)
|
|
Master EcoModder
Join Date: Feb 2010
Location: CT, USA
Posts: 544
RaceJeep - '98 Jeep Grand Cherokee (ZJ) 5.9 Limited 90 day: 13.62 mpg (US)
Thanks: 1
Thanked 26 Times in 23 Posts
|
245/70R16 Firestone Destination A/Ts (44psi max sidewall). I normally run 44 front, 40 rear, although I've pushed them up to 46/44 when towing, and run 46/42 once for handling purposes (a little extra air tightens the front end up a good bit).
__________________
Call me crazy, but I actually try for mpg with this Jeep:
Typical driving: Back in Rochester for school, driving is 60 - 70% city
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
05-23-2011, 12:11 AM
|
#82 (permalink)
|
|
Master EcoModder
Join Date: Jul 2010
Location: Canada
Posts: 706
Thanks: 152
Thanked 265 Times in 162 Posts
|
I've actually lowered the tire pressure to 35 from 40. The reduced ride comfort and the constant rattling were getting on my nerves.
|
|
|
|
|
05-23-2011, 01:03 AM
|
#83 (permalink)
|
|
Do more with less
Join Date: Jul 2010
Location: North Eastern Missouri
Posts: 930
Thanks: 66
Thanked 177 Times in 112 Posts
|
If the police do it then it must be legal and safe.
I love it Bob, You drive two prius' and shoots guns with big flames My wife has an M44 that does that. Economy with firepower. My cars look too much the part.
Quote:
Originally Posted by bwilson4web
My understanding is police crusers also run over max pressure tires. It gives them more precise handling, longer life, and a little more performance from the lower rolling drag.
In my case, maximum sidewall pressure, 51 psi, accomplishes my goals so I'm happy. But I would have no problem with running up to 60 or 70 psi.
Bob Wilson
|
__________________
“The further a society drifts from the truth, the more it will hate those that speak it.” George Orwell
“Before a standing army can rule, the people must be disarmed; as they are in almost every kingdom in Europe.
The supreme power in America cannot enforce unjust laws by the sword; because the whole body of the people are armed.”
– Noah Webster, 1787
|
|
|
|
|
04-11-2014, 08:00 PM
|
#84 (permalink)
|
|
hypermiller somewhat.....
Join Date: Oct 2013
Location: nova scotia
Posts: 70
Thanks: 1
Thanked 6 Times in 6 Posts
|
I am running at 44 PSI (max sidewall) all around on my winters, which are coming off this weekend. I will go max sidewall on my P4's too. 205/55/16's
|
|
|
|
|
04-12-2014, 03:23 PM
|
#85 (permalink)
|
|
Master EcoModder
Join Date: Dec 2012
Location: Pennsylvania
Posts: 506
Woody - '90 Mercury Grand Marquis Wagon LS Last 3: 19.57 mpg (US) Brick - '99 Chevrolet K2500 Suburban LS Last 3: 12.94 mpg (US) M. C. - '01 Chevrolet Impala Base 90 day: 18.73 mpg (US) R. J. - '05 Ford Explorer 4wd 90 day: 16.66 mpg (US)
Thanks: 936
Thanked 34 Times in 28 Posts
|
With Boxy, 35/36 cold and 39/40 hot until new tires are put on.
__________________
|
|
|
|
|
04-12-2014, 03:42 PM
|
#86 (permalink)
|
|
Master EcoModder
Join Date: Sep 2009
Posts: 5,927
Thanks: 877
Thanked 2,024 Times in 1,304 Posts
|
45.
regards
Mech
|
|
|
|
|
04-12-2014, 04:19 PM
|
#87 (permalink)
|
|
Cyborg ECU
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
|
60+ (hot) so that i can be certain to be 10 overmax sidewall (45) in most cooler conditions. Ten over max sidewall was what MetroMPG test and found the max benefit. Been doing that for 3 years, 12000-15000 miles/year.
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
|
|
|
|
|
04-12-2014, 06:32 PM
|
#88 (permalink)
|
|
Master Ecomadman
Join Date: Nov 2010
Location: Chicago area
Posts: 1,154
Thanks: 20
Thanked 337 Times in 227 Posts
|
45 psi front 42 psi rear 205/70-R15
__________________
- Tony
|
|
|
|
|
08-02-2014, 06:27 AM
|
#89 (permalink)
|
|
EcoModding Lurker
Join Date: Sep 2010
Location: Australia
Posts: 80
Thanks: 2
Thanked 4 Times in 3 Posts
|
46-48PSI cold for the last 30,000K's, haven't seen any detrimental wear effects.
 |
|
|
|
|
08-02-2014, 09:56 AM
|
#90 (permalink)
|
|
Master EcoModder
Join Date: Jan 2014
Location: South Carolina
Posts: 1,659
Thanks: 128
Thanked 764 Times in 461 Posts
|
Fronts I run at 55 psi
Rears I run at 50 psi
The rack & pinion steering is really responsive, and I haven't seen any odd tread wear yet. I've been running this psi for 6 months.
I'm not gonna say the ride is all that comfortable, lol . . . I feel it if I run over a cigarette butt in the road, but it will coast half a mile!
__________________
|
|
|
|
|
