Tire pressure - Genesis G80 Forum
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post #1 of 18 (permalink) Old 03-14-2017, 07:41 PM Thread Starter
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Tire pressure

G80 5.0 was delivered with placard recommended tire pressures [F=33, R=35]. Also, believe inflation was with "N" (nitrogen), but that's a separate thought.

Over years, I've been best served having cool pressures set 2 to 3# higher than placard. I prefer easy rolling and response versus "the ride".

Would appreciate observations/comments relating to G80 "numbers".
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post #2 of 18 (permalink) Old 03-17-2017, 02:44 PM
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The way I always seen these numbers on any car is as just some default approach, a one size fits all approach if you know what I mean.
Personally I never cared to change them with the OEM wheel/tire set, but going aftermarket that's a different story.

Have you been experimenting with different pressure ratings?
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post #3 of 18 (permalink) Old 03-18-2017, 03:24 PM
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interestingly enough when I got my g80 from the dealer as i'm riding home I noticed the tire pressures were about 45-48 and I actually pulled over and let air out..assume they filled them up to max since it was likely sitting on lot for a couple of months and they didn't want it to drop below minimums..i have my on 35-36 cold pressure so I don't have to continually add air if the cold weather sets off the alert..
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post #4 of 18 (permalink) Old 03-18-2017, 06:27 PM Thread Starter
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Haven't altered (yet) from 35# at delivery. In a week, or so, I'll set 35 front and 38 rear for trial.
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post #5 of 18 (permalink) Old 03-19-2017, 06:22 PM
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Sounds good, let us know how it feels compared to the playing around with pressures.
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post #6 of 18 (permalink) Old 03-24-2017, 12:27 PM
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I think that higher pressure from the dealer might be a result of them not adjusting it from what might be a shipping setting. Wont be entirely surprised if that was the case. If it is i wonder what else the dealer didn't check before sending it off to you
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post #7 of 18 (permalink) Old 04-05-2017, 12:52 PM
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That's a good point, didn't think about it. They could have missed that on the PDI and just left it there because I have heard that they're typically sent with higher than recommended tire pressures. Apparently it has something to do with them strapping the car down and something with the pressure down on the tires on the truck.
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post #8 of 18 (permalink) Old 04-21-2017, 07:12 PM Thread Starter
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Today (4/14) inflated front to 35# and rear to 37# at 80ºF. Will observe for a week and then post.

Follow-up: (4/22): A week of mostly short runs and a 60 mi circuit am happy with the increased settings. Feels "tighter" on ramp curves and lane changes. A bit more "bump" of road surface, but that's trade-off I expected. Think I'll hold the pressures for Summer and continue observing. Cheers!
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post #9 of 18 (permalink) Old 04-26-2017, 02:54 PM
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Any notice in difference in mpg ?
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post #10 of 18 (permalink) Old 04-26-2017, 08:28 PM Thread Starter
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MPG change is difficult to discern due to urban driving. Am confident it will remain in 21 to 28 range - that's what I've experienced in first 1000 miles. Didn't buy the 5.0 for "gas mileage", but am VERY pleased with current results. Will leave the pressures at 35F/37R for next few months. Seems to be good balance between ride (which Gensis wants you to have), tracking/tire wear/MPG (which is MY interest). Cheers!
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