BuckMkII
Posts: 215
Joined: Sat May 06, 2017 8:04 am
Location: Seattle

Highest cold Inflation pressure?

Sat Sep 08, 2018 10:04 am

What is the highest tire pressure you are comfortable running in replacement Ecopias?
2013 SV no QC, built July 2013
car grew up in San Jose CA, purchased 5/31/17 in Seattle
on 6/16/17: AHr = 56.4; SOH = 86%; Hx = 84.3; ODO = 39,250
bar 12 lost 8/21/17
on 8/23/18: AHr = 54.6; SOH = 83.5%; Hx = 78.2; ODO = 49,746

GerryAZ
Gold Member
Posts: 1845
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Highest cold Inflation pressure?

Sat Sep 08, 2018 10:55 am

I recently bought 17-inch Ecopias, but went up to 215/55R17 to get slightly larger diameter. Sidewall indicates maximum cold inflation is 51 psi. I am presently running 48 because 51 seemed a little harsh over bumps. As far as the tire is concerned, there is no issue running the maximum listed on the sidewall with pressure checked at night (early morning) when tire is coldest. The 16-inch Ecopias that came on my 2011 had sidewall maximum of 44 psi cold and that is where I kept them.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

Thick8
Posts: 12
Joined: Fri Aug 31, 2018 6:31 pm
Delivery Date: 30 Aug 2018

Re: Highest cold Inflation pressure?

Sat Sep 08, 2018 1:21 pm

Rule of thumb is 80-100% rated pressure. The car will tend to wander at higher pressures.

LeftieBiker
Posts: 9580
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Highest cold Inflation pressure?

Sat Sep 08, 2018 1:31 pm

Having run 40-42psi on my 2013 Leaf, I now leave the 2018 at 38psi. It rides better and I don't need more range.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

specialgreen
Posts: 141
Joined: Sun Mar 26, 2017 1:21 pm
Delivery Date: 26 Mar 2017
Location: Minnesota

Re: Highest cold Inflation pressure?

Mon Oct 29, 2018 10:38 am

Does anyone get errors or DTCs from being "over pressure"? I started getting a "check tire pressure" icon on the dash every time I start the car; but LeafSpy shows all four tires are between 39.5 and 40 psi, and shows no active DTCs.

BuckMkII
Posts: 215
Joined: Sat May 06, 2017 8:04 am
Location: Seattle

Re: Highest cold Inflation pressure?

Mon Oct 29, 2018 10:55 am

specialgreen wrote:Does anyone get errors or DTCs from being "over pressure"? I started getting a "check tire pressure" icon on the dash every time I start the car; but LeafSpy shows all four tires are between 39.5 and 40 psi, and shows no active DTCs.


Nope, or if I did I didn't even notice it (possible but unlikely over multiple days). The day I posted this, I pumped the Ecopias up to 46 PSI cold. I left them like that for a few days, then pulled back to 44.
2013 SV no QC, built July 2013
car grew up in San Jose CA, purchased 5/31/17 in Seattle
on 6/16/17: AHr = 56.4; SOH = 86%; Hx = 84.3; ODO = 39,250
bar 12 lost 8/21/17
on 8/23/18: AHr = 54.6; SOH = 83.5%; Hx = 78.2; ODO = 49,746

smkettner
Posts: 7203
Joined: Mon Aug 09, 2010 10:13 pm
Delivery Date: 26 Feb 2014
Location: Orange County, CA

Re: Highest cold Inflation pressure?

Mon Oct 29, 2018 11:24 am

BuckMkII wrote:What is the highest tire pressure you are comfortable running in replacement Ecopias?
Sidewall max in all conditions.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
I-Pace on order for end of 2018 delivery

GerryAZ
Gold Member
Posts: 1845
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Highest cold Inflation pressure?

Mon Oct 29, 2018 10:01 pm

smkettner wrote:Sidewall max in all conditions.
+1

I ran 44 psi cold on the 2011 and have tried pressures up to 51 psi cold on the 2015. The only times I received dashboard warnings were for low pressure (flat tires or while setting TPS positions in Leaf Spy).
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

User avatar
SalisburySam
Gold Member
Posts: 214
Joined: Thu Sep 27, 2012 11:01 am
Delivery Date: 24 Feb 2012
Leaf Number: 018156
Location: Salisbury, NC

Re: Highest cold Inflation pressure?

Tue Oct 30, 2018 6:38 am

smkettner wrote:Sidewall max in all conditions.


+1, and that’s for any tire really. Totally comfortable running at max tire pressure...that’s what it is there for.

That said, I’ve run my still original 2012 LEAF SL Ecopia tires at 36psi (car recommendation), 40psi, and 44psi (tire max) for extended periods to feel the difference. For me, 36psi seems a tad mushy, almost under inflated. 44psi gave a ride harsher than I liked and so the sweet spot is 40psi. I’ve used that for a couple of years now and plan to continue doing so. Still a good ride, better handling to my mind, no unusual tread wear, slightly better energy consumption (and I mean only SLIGHTLY), so all good.

At none of the 3 pressures have I gotten a TPMS message, and LEAFSpyPro shows no DTC’s being thrown.
Nissan 2012 LEAF SL Super Black
12,900 miles, 10 bars showing, 75% SOH, 49.80 Ahr

Tesla Model 3 - Basic Black | Long Range | Premium Upgrade Package | Extended AutoPilot | Full Self-Driving
Delivered: July 19, 2018 | 3,200 miles

LeftieBiker
Posts: 9580
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Highest cold Inflation pressure?

Tue Oct 30, 2018 12:20 pm

I don't like using sidewall max, simply because not all gauges are accurate, and someone is bound to use the max on a really cold tire, with a very pessimistic gauge. That number really is for a heavily loaded tire. That's why I do 95% of the max. (On my 2018 Leaf I'm doing 38psi, and like it.)
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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