merlin the wrench

Took the 2006 RL in today to the Acura Dealer for checking a few things, one is the tires are cupping. They are set to factory sticker pressure cold about once a week using the Honda pressure gauge which is accurate to 1% (huge dial if you haven't seen one).

Here is what the service order reads basically that the cause is that my tires were at "Factory Spec." (which is 32F/30R) and the partial fix is:

"Tire pressure checked and set pressures to RECOMMENDED spec ... 35 Rt Front, 35 Lft Front, 35 Rt Rear, 35 Lft Rear"

This is the same pressure another dealer set it to a few weeks ago 35 all the way around. I reset it to the factory sticker but am now wondering if Acura has changed their recommendation. If so it would be nice if they would send an ammended sticker and page for the book etc.

alfadoctor

Our 2006 tires were worn on both the outside and inside indicating low pressure. The first thing I checked when I got the car was the tire pressure and yes they were low around 30 psi. The car was always dealer maintained so I suspect that is where the pressures were set. I have since put the pressures at what you have posted. The tires will now wear on the centers, with better steering effort and mileage.

The stickers are recommendations only. The only way to really know is to monitor the tire wear with a depth gauge, to see how the tires are wearing inside to outside, and keeping the alignment in specs.

merlin the wrench

I know all about tread gauges and pyrometers etc however factory setting used to be really close. I'll call the dealer and see if Acura updated their recommendations, and if not where the technician is getting the number. Usually best tire wear and handling are about the same pressure as that is where the tire is making even contact with the road. I just thought maybe someone here would have already gone through this question as this is a 2006 RL and today is 2010.

Chas2

The 2010 RL still recommends 32/30 with 36/35 recommended for sustained high speed driving (112+)

lland

I've been getting very even wear on my PAX tires (51,000 miles), keeping them at 34/32 (rotating and balancing regularly).

LL

rlerman

I believe the recommended pressure for my 05 is for 32 cold all around.

racerrl

05 is 33 front, 32 rear. I run 35 all the way around with even wear.

rlerman

just checked my door sill, says 32 front, 30 rear. I try to run 32 all around.

037

um, 32/30....DOH!!

Guess I have to upp the pressure, got 34 all around right now and figured the cold weather would push it down naturally.

23109VC

my tires are always at 32/30... give or take a bit...

today for an experiment i put air in them and upped them to about 38/35... car drove noticdeably stiffer / bumpier.

i think it feels better with lower pressure...

ReverendOlaf

Dealer always does 35psi (all around) in my '05 (I have the 18" wheels). They also fill my wife's RDX over spec (and every loaner I've driven, but that's based on TPSM).

rtr

i hope you guys are joking! every tire has its own load spec's so that means depending on your tire is what your tire pressure will be. Read your tire side wall and do some testing and by feel and ride quality you will find the perfect spot.

037

guessing vs dealer vs spec...hm, I wonder which I would pick

merlin the wrench

you don't read very well. Go back and read the first post and if you have something to add, add it. The tire side wall and testing have no value as to the question whether ACURA changed THEIR specs, not yours. If I wanted to test I would put a pyrometer on it. That wasn't the question. If I seem hostile and overbearing it is because of your condescending manner towards the other fine folks who did answer my question.

23109VC

I increased pressure from the 32/30 range closer to 38-39/35-36 range... i drove around taht evenign and noticed it was quite a bit stiffer.... i felt more bumps.. can't say it handled any better.. steering might have become a little bit lighter...which honestly I dind't care for. the car might have felt more inclined to tramline/follwo the groves in teh road...

put pressure back down... it's not like 35/32 and its' better... i like it less bumpy.. i must be getting old..

i'd LOVE to get an 18" tire that would have less sidewall squish and better responveness...but retian the smoothness of the 17" MXMs when you just cruise... the reality is that I spend 90% of the time driving straight.... and hardly any time in the corners ..so to me, it makes more sense to prioritize what I do most.. so smooth/comfy is higher priorty than turns.. but if there is a sweet spot in there... I want to find it!

anyone think you can get an 18" tire setup that would ride AS smooth as the oeM 17" MXMs?? I know some 18" tires are softer/smoother riding than others... but not sure if you can do it with 18s..given that the MXM4..while not the greatest tire, is a pretty smooth one.... so I believe...

Chas2

So that means you want a Grand Touring All Season type tire in 245/45-18. Does it need to be AS or can it be a 3 season tire? How cold does it get where you are in California?

23109VC

i live near San Diego. the COLDEST I've EVER seen it is 40s.... last night it was "cold" to me and it was mid 50s.... so 90% of teh year, we see 65-85 temps... gotta love San Diego weather...

I coudl get by with a total summer tire.. like a PS2 if I wanted to deal with the shorter tread life;..and I'd do it if it would run smoother than an all season... i had PS2s on my odl car and recall thinking they rode really smoothly... but don't know if they would be as smooth as a Pilot SPort A/S+ ??

thanks.

I could go witgh another set of MXM4s... they ride smooth... but maybe a slighterly higher perf all seasonw ould give me better handling and some decent handling...

my parents are coming up today in their RL... they have 245-45-18 Dunlop sport signatures... i'm going to test drive their car and pay attention to teh ride, and their tire press temps... most to come...

rtr

oh i can read fine! and if you trust what Acura says that's fine but i don't and i worked there. if your car is 2005 and your tires are 2010 then lots of things can change. is the car lowered and what not you can actually adjust camber a bit with pressure and ride quality so what they suggest is not always best for the costumer. If you like 35 all round good for you maybe you like it like that im just letting everyone know the real deal!! my four cents better than 2

merlin the wrench

I am just trying to get the facts on what Acura is actually recommending. If they have changed their recommendation since the car was released I want to know it. What I put in my tires will be based on where they wear best. Someone else may inflate theirs to where they corner best and another person may inflate them for best gas mileage. Just want to know why Acura is publishing 32/30 on the doors and book as recommended yet the Acura service order says 35/35 is recommended.

kssod

34 all around seems to work fine for me

racerrl

Opps! I incorrectly reported my recommended f/r pressure at 33/32, but it is in fact 32 front/30 rear. I'm now running my second set of General Exclaim UHP ZR summer tires at 35 all the way around with good results, (even wear, wet/dry traction, etc.).

merlin the wrench

Racerrl - These are General Exclaim UHP. They are cupping and the dealer tells me they are the tires and not the alignment. Do you get cupping on yours? We sound like a 4x4 with mud tires.

037

I just had a 2nd look at the owners manual and high speed drivers (over 112mph) are recommended 36/35psi