Recent Topics
FREE Honda Idemitsu 0W20
by adolan21
07/30/14 06:12 PM
Eric The Car Guy Goes to Valvoline
by KevGuy
07/30/14 06:01 PM
2007 X3si 5w30 7,500 BMW 5w30 LL oil
by nighamreuki
07/30/14 05:57 PM
you might want to rethink what you know about oil
by mcshooter
07/30/14 05:27 PM
brakes feel weak
by bowlofturtle
07/30/14 04:55 PM
Changed Uplander ATF.
by asand1
07/30/14 04:48 PM
How did i just notice this ?
by OtisBlkR1
07/30/14 04:48 PM
Hyundai recalls 883k Sonatas/detaching shift cable
by tenderloin
07/30/14 03:44 PM
2009 Honda Accord Fluids
by lancerplayer
07/30/14 02:57 PM
2000 Nissan Sentra 1.8L oil weight recommendations
by Rtstrider
07/30/14 02:52 PM
Oil Recommendation? Highish miles Honda Pilot
by CaddymanLNL
07/30/14 02:44 PM
Thanx To A BITOG Member
by BlueOvalFitter
07/30/14 02:18 PM
Newest Members
gsniegow, dimaone, CaddymanLNL, geovanni, LTD
50806 Registered Users
Who's Online
105 registered (901Memphis, 05LGTLtd, 97f150, 1foxracing, 7055, 123Saab, 6 invisible), 2021 Guests and 238 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
50806 Members
64 Forums
217059 Topics
3417628 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Page 2 of 2 < 1 2
Topic Options
#3319449 - 03/21/14 10:30 PM Re: Better gas mileage with stiffer suspension. [Re: Nayov]
eljefino Online   content


Registered: 06/15/03
Posts: 23562
Loc: ME
The tire theory of setting to not-too-high a PSI is the tire pushes back against the road after it goes over a pebble. Stiffening the tire interferes with that. It stands to reason that stiff shocks might too.

Top
#3319597 - 03/22/14 09:01 AM Re: Better gas mileage with stiffer suspension. [Re: Nayov]
whip Offline


Registered: 03/03/05
Posts: 1451
Loc: ohio
Originally Posted By: Nayov
Originally Posted By: Trajan

A shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy.

Nothing more. Nothing less.


Yes, but I would add that dissipated energy (heat) is wasted and it costs fuel, but I do concede that the amount is in all probability immeasurable.

Until you can convert the energy from the bump into a way to propel the vehicle, it has zero effect on the fuel economy. Buying a lighter car would help more than anything.

Top
#3320122 - 03/22/14 07:13 PM Re: Better gas mileage with stiffer suspension. [Re: eljefino]
Nayov Online   content


Registered: 08/01/09
Posts: 696
Loc: ME
Originally Posted By: eljefino
The tire theory of setting to not-too-high a PSI is the tire pushes back against the road after it goes over a pebble. Stiffening the tire interferes with that. It stands to reason that stiff shocks might too.


Fascinating. I always thought the harder the tire the better for MPG, but, this makes sense. He's to hoping my gas mileage won't be plummeting with my sporty stiff struts. whistle

Top
#3320138 - 03/22/14 07:26 PM Re: Better gas mileage with stiffer suspension. [Re: Nayov]
Eddie Offline


Registered: 12/07/03
Posts: 6598
Loc: Florida, Cape Coral
If you make force vs distance diagram you'd see that what you gain is easly lost in the noise. Ed
_________________________
CX5 Touring 2.5L :-)

Top
#3320221 - 03/22/14 08:42 PM Re: Better gas mileage with stiffer suspension. [Re: Nayov]
jeepman3071 Offline


Registered: 04/15/10
Posts: 1611
Loc: Storrs, Connecticut
The money you save in gas with stiffer shocks will probably not be enough to cover your doctor bills from back problems down the road.
_________________________
2000 Jeep Cherokee Sport 4.0L (144k) - PYB 10w40, Wix 51085, Magnefine trans filter

Top
#3329346 - 03/31/14 04:22 PM Re: Better gas mileage with stiffer suspension. [Re: Merkava_4]
Trajan Offline


Registered: 07/16/05
Posts: 3101
Loc: SE PA
Originally Posted By: Merkava_4
The more you keep the car in a straight line, the better the fuel mileage will be.

A car getting tossed around from stiff suspension is going to affect its straight line.


Shocks and springs are not powered by the engine, nor is any energy from them used to move forward.
_________________________

Lack of harm does not mean proof of benefit.

Top
Page 2 of 2 < 1 2