Recommended tyre pressures 245-45/18

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OK, I'll stick my head above he parapet here and risk getting shot down:

I've not experienced them, although the reviews aren't too bad and surprisingly not in the "ditchfinder" category despite what you might expect. 4 season Sailun Atrezzo Z4+AS look a steal at £48 from tyreleader. Remember, I also have a Skoda, so I'm not proud...

Just don't shoot the messenger.

So I bought a set for future use but I just sold my car today. If anyone wants 4 cheap (or inexpensive ) all-season tyres in time for the autumn then send me a PM. Otherwise they'll just make my other car sit a bit lower and increase my odometer reading by 5%... Read the reviews first though.

[rowdy-999]

On the subject of tyre pressures i was quite amazed that the 235/40/18 tyres on my car required iirc 41psi all round unloaded.
I tried it, and it gave a terrible ride quality. It may be perfect for zooming up and down the autobahn, but not your average UK road.
35psi is much more compliant, with no decrease in MPG.

[noscream]

On the subject of tyre pressures i was quite amazed that the 235/40/18 tyres on my car required iirc 41psi all round unloaded.
I tried it, and it gave a terrible ride quality. It may be perfect for zooming up and down the autobahn, but not your average UK road.
35psi is much more compliant, with no decrease in MPG.

And that's the idea, every situation is slightly different.
OP, says he's having wear on the middle of the tire.

That traditionally indicates over inflation, but contradiction to that, he runs @ 32psi, under the recommended.
I have a A6 C7 3.0 Tdi, running 36-38 front, 36 rear. on summer tyres, 245-45-R18 Pirelli P-zerro, feels good and even wear...

I use a simple rule of thumb, inflate your tyres on level even ground and look at the tyre shape, under inflate will look saggy, over will round the running surface.
Run them around +/-5 psi to manufacturers each axle balanced.

Remember as the temp drops, air contracts so pressure drops, recheck in winter.

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I've temporarily fitted the 245/45 18s from my old allroad to my new one and set the pressures at 39PSI. The tyres are undersized (moreso as they are also worn) and are making a bit of a humming noise. I think I'll drop the pressures, but given that the avant is heavier than the saloon, and the allroad is heavier than he avant; can anyone confirm what the door sticker suggests for this size on a 3.0 TDI avant please?

They don't actually look too bad despite being undersized, and I'll be fitting winters in about a month anyway, so it's a short-term fix for the next 1000 miles or so.

[Splash]

I've temporarily fitted the 245/45 18s from my old allroad to my new one and set the pressures at 39PSI. The tyres are undersized (moreso as they are also worn) and are making a bit of a humming noise. I think I'll drop the pressures, but given that the avant is heavier than the saloon, and the allroad is heavier than he avant; can anyone confirm what the door sticker suggests for this size on a 3.0 TDI avant please?

They don't actually look too bad despite being undersized, and I'll be fitting winters in about a month anyway, so it's a short-term fix for the next 1000 miles or so.

Dropped down to 35 for a 300 mile journey. Don't think they look too bad, and only a bit small. 45 profile helps I think.

[noscream]

I've temporarily fitted the 245/45 18s from my old allroad to my new one and set the pressures at 39PSI. The tyres are undersized (moreso as they are also worn) and are making a bit of a humming noise. I think I'll drop the pressures, but given that the avant is heavier than the saloon, and the allroad is heavier than he avant; can anyone confirm what the door sticker suggests for this size on a 3.0 TDI avant please?

They don't actually look too bad despite being undersized, and I'll be fitting winters in about a month anyway, so it's a short-term fix for the next 1000 miles or so.

It's not an Avant, it's a 3.0TDI Quattro Saloon, but here is the sticker.
Only thing you have to remember is Loaded & unloaded weights.
Generally they are higher on the front because of the engine around 38 & 32 rear unloaded.
A couple of extra pounds if loaded.


Screenshot_2015-10-07-20-33-04_resized.jpg


But I've always run mine 36 all around, and wear is ok, I keep checking month on month....

[Splash]

Thanks. Forgot to stipulate quattro so you're about as close as I'm going to get.

My journey showed a totally ficticious 47MPG and an additional 5% miles. I'm still trying to work out what's due to the reduced circumference and what's due to the aero effects of reduced section width combined with a lower ride height. The speedo also overreads by about 5MPH at motorway speeds versus GPS. I won't tell my wife.