Welcome Guest ( Log In | Register )

Bump Topic Add Reply RSS Feed

Outline · [ Standard ] · Linear+

 Tyre air - is it a must to follow exactly?

views
     
1tanmee
post Feb 7 2017, 11:17 PM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
QUOTE(eksk @ Feb 7 2017, 08:12 AM)
For my myvi 1 psi above recommended is fuel saving.. 2 psi above, the fuel  usage increase..
*
not more air = lesser contact to the ground = less drag = lesser fuel meh?
1tanmee
post Feb 11 2018, 11:01 AM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
There is this maximum pressure allowed, indicated on the tyre wall. It makes sense not to pump air to this 'maximum pressure', right?
1tanmee
post Feb 14 2018, 07:27 PM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
QUOTE(zeng @ Feb 12 2018, 10:18 PM)
Yes, one should not pump air to the maximum pressure indicated,  as like 51 psi for some tyres.
*
How much would the air pressure increases if driving for long hours during the hot day? It should be about 4-6psi?
1tanmee
post Feb 14 2018, 07:27 PM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
QUOTE(zeng @ Feb 12 2018, 10:18 PM)
Yes, one should not pump air to the maximum pressure indicated,  as like 51 psi for some tyres.
*
How much would the air pressure increases if driving for long hours during the hot day? It should be about 4-6psi?
1tanmee
post Feb 15 2018, 08:17 PM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
QUOTE(zeng @ Feb 14 2018, 10:20 PM)
My rule of thumb is about 4 psi.
*
So if max allowed is 51psi, max air pressure can put is 47psi. Anyways, 40+psi is already on the high side dy. I usually pump 31front/28back.

Will try pump more and see the effect on driving/braking
1tanmee
post Feb 19 2018, 03:38 PM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
QUOTE(1tanmee @ Feb 15 2018, 08:17 PM)
So if max allowed is 51psi, max air pressure can put is 47psi. Anyways, 40+psi is already on the high side dy. I usually pump 31front/28back.

Will try pump more and see the effect on driving/braking
*
Update on my earlier post...

I pumped 34front/32back.

Car feels more agile, but rattles/shakes more. Braking distance increases, and feels less safe (lesser contact to ground?). Fuel economy-wise, hard to guess. Macam no significant difference
1tanmee
post Feb 20 2018, 07:29 PM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
For sedan, does it make sense to pump same air pressure for both front and rear?
1tanmee
post Feb 21 2018, 09:51 PM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
QUOTE(zeng @ Feb 21 2018, 10:52 AM)
My Avanza specifies 31 front and 35 rear.
I pumped 38 psi, and now 41 psi on all four tyres ...........................
for its maximum tyre loading and maximum tyre road speed which isn't required for the Avanza, but fine for the tyres anyway.
*
What are you aiming for in pumping more than the recommended air pressure? Is it fuel economy and/or lesser frequency to pump air and/or fuel economy? Curious to know
1tanmee
post Feb 22 2018, 12:24 AM

~noMNom~
*****
Senior Member
970 posts

Joined: Jul 2016
QUOTE(zeng @ Feb 21 2018, 10:15 PM)
More for agility ... and then for fuel economy, yet stay within specs of tyres in question.
Also note tyre pressure drops by about 3 psi in every 1-1.5 month of use .
*
Fair enough. Anyway, no significant longer braking distance?
« Next Oldest · Tyre Talk · Next Newest »
 

Add ReplyOptions
 

Change to:
| Lo-Fi Version
 0.0167sec    0.54    7 queries    GZIP Disabled
Time is now: 19th December 2025 - 04:48 AM
All Rights Reserved © 2002- 2025 Vijandren Ramadass (~unite against racism~)
Removal Request
Powered by Invision Power Board © 2025  IPS, Inc.