I bet it rides and handles better after the appropriate reduction!
They are doing the brand a disservice by letting potential customers test drive with "shipping" pressures. The ride can get artificially "harsh" with so much air in the tires and turn shoppers away to other cars.a problem encountered by many on the Giulia forum is dealers not reducing air pressure from "shipping" pressures (in the range of 50 psi) to driving presssures (noted on the drivers doorjam).
I learned the other day that dealer who sold me my Stelvio just got his drivers license and knows about cars just as much as I do (not a lot)....Which tells me a lot about AR hiring and training program. Half of their salesmen don’t even know what they’re selling(They are doing the brand a disservice by letting potential customers test drive with "shipping" pressures. The ride can get artificially "harsh" with so much air in the tires and turn shoppers away to other cars.a problem encountered by many on the Giulia forum is dealers not reducing air pressure from "shipping" pressures (in the range of 50 psi) to driving presssures (noted on the drivers doorjam).
with the cold weather mine were running a pound or two low, but would warm up to pressure after a little driving. Now that it's warming up they are back at spec all the time. I did some pretty sporty / spirited driving yesterday and a little more on the way back from a clients office a couple towns over after lunch today, and didn't have any complaints about tire pressure.So finally had the chance to put some highway miles on my new Stelvio, and we noticed that "pang" of a sound you get when you hit an over inflated inner tube when driving over roadway gaps. It reminded me of seeing this thread on the forum, so decided to investigate. As noted previously - the label on the door jamb (for US vehicles) states 33psi for the front, and 36psi for the rear. Got out my digital pressure gauge, and what do you know - my tires were all inflated around 55-56psi! Kind of a simple thing and surprising the dealers are not catching this. I have a Ti Sport, so have the Conti tires; is there a general agreement here that 33-36psi might be a tad soft for a sporty ride, and people going down to the low 40's instead?
Great trick, according to this I have perfect. 35 psi forward and 38 psi behind. I have a 235/55 R19 but as I see the pressure is the same as the 255."warm up to pressure"
you should set your pressures with a cold (undriven) tire - they will increase pressure when driven which warms them up, but the recommendations take that in to consideration.
if they increase by more than 10%, you started with too little.
if they increase by less, you started with too much.
others may use a different guideline, but this works for me.
I have a few articles for you to read about tire pressures. For example, the maximum load pressure for any non truck tire is 35 PSI (that is the pressure the load rating ins calculated at). Overinflation is a hypermiling trick. Handling will only be "better" while tire is "cold", once hot it will get greasey REAL quick. I NEVER added pressure to the Evoque, actually it was best at ~2 psi below door jamb.. Overinflation destroyed ride and it oversteered VERY easily. ALL manufacturers now run as much pressure as possible to reduce rolling resistance, often to the detriment of other aspects of handling. I can't remember the last time a vehicle needed to add pressures for a track day. Most of the time you drop 5-10 psi for cold pressures.BTW, the infotainment system will report tire pressures for all 4 tires. it's under the Car section.
IIRC the manual recommends 33psi front / 36 psi rear for the 255/20 tires on the Ti Sport.
The tire itself actually says / dictates what the maximum pressure is, it has nothing to with the vehicle manufacturer specifications. Adding a few PSI of pressure to the tires is a very common thing to do on performance cars to improve handling. My BMW is spec'd in the manual at 30 PSI, but I found it handles much better at 40 PSI. That tire is rated for 55 PSI, so anything 55 and under should not have uneven wear. My Evoque handled best at 34 rear and 37 in the front (and was SUPER sensitive to left / right pressure imbalances, it would start to gently pull to the lower pressure side while on the highway at even 1 psi difference)
I've been considering adding about 3 PSI of pressure to my Stelvio, but holding off for the moment since the weather is hopefully going to warm very soon. I'm very OCD on the pressures, and when I add air I try to match the pressures to within 0.1 PSI accuracy between the tires.
Getting overinflated tires in a brand new car is a problem across all brands in the US.
Many bozo dealer PDI mechanics seem to check tire pressures when hot, vs. cold.
My dilemma is whether I should believe my trusty pressure gauge or what the tire pressure is according to the Infotainment system,
Does anybody know how accurate the Infotainment system is with its tire pressure readings?