Best psi for MPG?
#1
04-09-2018, 10:24 AM
Best psi for MPG?
I searched the forum and the mileage thread but "no results" came up even though I'm sure this has been discussed.
What is the best psi to use for MPG with the stock 16" wheels/tires on a 2018 EX-L CVT?
I currently have them set at 32 psi.
Thank you.
What is the best psi to use for MPG with the stock 16" wheels/tires on a 2018 EX-L CVT?
I currently have them set at 32 psi.
Thank you.
#2
04-09-2018, 10:43 AM
I'm no expert with this sort of thing, but I'd imagine that MPG would correlate with tire pressure, ie the higher the better. However, your economy gains will be lost in excessive tire wear as the center tread will wear more quickly than the shoulders.
I run about 32 PSI too, sometimes going to 35 when my kid takes the Fit off to college and I want to add a little insurance against leakdown.
I run about 32 PSI too, sometimes going to 35 when my kid takes the Fit off to college and I want to add a little insurance against leakdown.
#3
04-09-2018, 11:16 AM
I'm no expert with this sort of thing, but I'd imagine that MPG would correlate with tire pressure, ie the higher the better. However, your economy gains will be lost in excessive tire wear as the center tread will wear more quickly than the shoulders.
I run about 32 PSI too, sometimes going to 35 when my kid takes the Fit off to college and I want to add a little insurance against leakdown.
I run about 32 PSI too, sometimes going to 35 when my kid takes the Fit off to college and I want to add a little insurance against leakdown.
#5
04-09-2018, 06:37 PM
Thank you for the thoughtful responses. I think I will try a higher setting for a period of time. I used 40psi on our Volt, I might go that high just to see if the handling gets unbearable. I'll report back. Thanks.
#7
04-10-2018, 09:33 AM
2018 EX with OEM Firestone FR740s. I started out with 33/32 PSI per the specs on the door and averaged 32.5 MPG in mixed driving. I then increased the tires to 36 PSI (these Firestones say 40 PSI max on the sidewall) and am now getting 35.3 MPG with the same set of daily driving conditions.
#8
04-10-2018, 12:18 PM
I run mine at 34-36 PSI. Seems like a good compromise between efficiency and comfort. In my previous Fit I experimented with higher but the benefits seemed marginal at best.
Looking at Fuelly.com, I seem to have the highest average MPG for all the 2016 fits on there. 99 fillups and no bogus data. Two Canadian winters with snowtires included.
Looking at Fuelly.com, I seem to have the highest average MPG for all the 2016 fits on there. 99 fillups and no bogus data. Two Canadian winters with snowtires included.
#9
04-10-2018, 02:39 PM
I'm no expert with this sort of thing, but I'd imagine that MPG would correlate with tire pressure, ie the higher the better. However, your economy gains will be lost in excessive tire wear as the center tread will wear more quickly than the shoulders.
I run about 32 PSI too, sometimes going to 35 when my kid takes the Fit off to college and I want to add a little insurance against leakdown.
I run about 32 PSI too, sometimes going to 35 when my kid takes the Fit off to college and I want to add a little insurance against leakdown.
My take is 32 PSI to 35 PSI for my car. Same for my son's Fit.
#12
04-12-2018, 04:45 PM
Anyone running lower pressure in the rear? I run 38 front & 30 rear when not carrying load/passengers.
#13
04-12-2018, 08:07 PM
Commander, why would you want lower pressure in the rear?
OP, the recommended tire pressure is on the sticker on the driver's door jamb. The max pressure the tire is rated for is on the sidewall. Somewhere between the two is where you can play to find your right balance between ride quality, grip and fuel economy. I run at 35 and if you go more towards the economy side I've heard a lot of people list 38 over the years.
Be aware the ride will be a bit chunky at that level .. the Fit has a lot of unsprung weight to crash over bumps. But you can experiment.
OP, the recommended tire pressure is on the sticker on the driver's door jamb. The max pressure the tire is rated for is on the sidewall. Somewhere between the two is where you can play to find your right balance between ride quality, grip and fuel economy. I run at 35 and if you go more towards the economy side I've heard a lot of people list 38 over the years.
Be aware the ride will be a bit chunky at that level .. the Fit has a lot of unsprung weight to crash over bumps. But you can experiment.
#14
04-12-2018, 08:42 PM
Cuz all the weight is at the front... with that heavy engine/transmission combo... and also, for the GK the gas tank is under the driver's seat.
#16
04-24-2018, 10:33 AM
I increased pressure from 32 to 40 psi all the way around and have seen a out a 4 mpg increase. I was high 38s on the dash MPG indicator now I am almost always over 40. I don't mind the feel of the higher pressure. Tire wear might be an issue, I'll see I guess. Thanks for all the thoughtful responses.
#17
04-25-2018, 07:10 AM
- Traction
- Tire wear
- Comfort
Let's SAY your Fit achieves 38MPG on 33-34 psi tires (which is spec).
Let's say your Fit achieves 42MPG on 40 psi tires.
Over the course of 10k miles, you will have saved a whopping 24.9 gallons of gas ~ about $87.1 at $3.50 per gallon.
In return, you'll wear out tires inner edges that much sooner, and compromise your own safety. I hope you forget to let the air out of your tires in the summer, and let them sit at a solid 50psi until they fail.
What muppets we have on the road these days...
Last edited by psamtik; 04-25-2018 at 07:12 AM.
#18
04-25-2018, 08:37 AM
Thanks for spending the time posting a well reasoned and unfortunately needlessly judgmental response.
I’’m happy to check my psi and try different pressures. I’ll be sure to report back if tire wear becomes a significant factor. The Fit seems to handle as before. The ride quality might be a touch stiffer but nearly an imperceptible change from 32 psi.
The 2-3 mpg change gets me over 40 on the dash readout on almost every drive and this for me is a goal that makes driving fun.
I’ve only fueled up 10 times and at 3 different pressures. Once I get more hand calculated data I’ll post back.
I might try 45 psi then 50 psi. Then I’ll really be tempting disaster.
Muppets?
I’’m happy to check my psi and try different pressures. I’ll be sure to report back if tire wear becomes a significant factor. The Fit seems to handle as before. The ride quality might be a touch stiffer but nearly an imperceptible change from 32 psi.
The 2-3 mpg change gets me over 40 on the dash readout on almost every drive and this for me is a goal that makes driving fun.
I’ve only fueled up 10 times and at 3 different pressures. Once I get more hand calculated data I’ll post back.
I might try 45 psi then 50 psi. Then I’ll really be tempting disaster.
Muppets?
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