Hey guys I've had my Octavia estate for a couple of weeks now and noticed its come fitted with Pilot Sport 4's. They seem to be set at 32psi at the moment but as they're a performance tyre I figured the optimal pressure may be different.

 

So what's the most optimal pressure for these tyres? Mostly mixed driving round town, motorways with either myself or one other person in the car.

Please see sticker on the fuel flap...

Oh and since they're only golden, not crystal, knowing the actual tyre size would help too.

15 hours ago, Lyminton said:

Please see sticker on the fuel flap...

I noticed that but I didn't know if that was a generic pressure. I just thought I may be able to get more out of my tyres (eg. Fuel economy, Less tyre wear, Better turn in response.) with a pressure specific for the tyre. Am I wrong?

 

Oh and they're 225/45 ZR 17

Welcome.

 

They are just tyres.

Put them towards the higher pressure range indicated on the Fuel Filler Flap. (loaded car)

If that feels too crashy when driving let them down a few PSI.

etc etc, without going to below the lowest recommended pressures.

So 20 pence or 50 pence to inflate at a Filling Station.

Maybe £12 for a good Tyre Pressure gauge to keep and check your tyres as you use trial and error.

 

5 minutes ago, Awayoffski said:

Welcome.

 

They are just tyres.

Put them towards the higher pressure range indicated on the Fuel Filler Flap. (loaded car)

If that feels too crashy when driving let them down a few PSI.

etc etc, without going to below the lowest recommended pressures.

So 20 pence or 50 pence to inflate at a Filling Station.

Maybe £12 for a good Tyre Pressure gauge to keep and check your tyres as you use trial and error.

 

 

Will do thanks for the advise. Am I right in saying a higher inflated tyre returns better fuel economy?

No. Well maybe, and too high wastes tyres or could, as too low can, set high gives better economy only because they have less friction so that might mean gives less traction, makes steering lighter etc.  All Generalisation Obviously.

But just think it through.

 

Just run a safe tyre pressure for the Weather, load carried, location location location.

Knowing what they are set at is important, and reset the TPMS.

Have the tyres giving a comfy safe drive is surely more important than economy surely.

 

If there was an optimum pressure for every day then you would never get shown the recommended pressures by Manufacturers.

Edited 28 March, 20179 yr by Awayoffski

41 minutes ago, basainty said:

I noticed that but I didn't know if that was a generic pressure. I just thought I may be able to get more out of my tyres (eg. Fuel economy, Less tyre wear, Better turn in response.) with a pressure specific for the tyre. Am I wrong?

 

Oh and they're 225/45 ZR 17

Well, the pressure for size sticker in the fuel flap is generic rather than $brand specific, but it's a good starting point. The next thing to do is keep the tyres in the recommended range for a few thousand miles, and look for any sign of under or over-inflation wear patterns, and adjust as applicable.

 

Rather than the dial type gauge suggested by @Awayoffski I prefer a pen-type BSI gauge, because they're less sensitive to accidental damage. You should be able to get a set of pressure and depth gauges for ~£10.

Yep I use a small pencil gauge as well to check tyre pressures,as the guys have already posted - you should not go too far away from the placarded pressures.

The fuel flap pressures will be 'Cold' pressures -  'Hot' tyre pressures will be approx 2 psi higher.

 

Will pick up one of those gauges for sure. Thanks for the advise I'll have a look at the manufactures recommended pressure as well and give it a go!

51 minutes ago, KenONeill said:

Well, the pressure for size sticker in the fuel flap is generic rather than $brand specific, but it's a good starting point. The next thing to do is keep the tyres in the recommended range for a few thousand miles, and look for any sign of under or over-inflation wear patterns, and adjust as applicable.

 

Rather than the dial type gauge suggested by @Awayoffski I prefer a pen-type BSI gauge, because they're less sensitive to accidental damage. You should be able to get a set of pressure and depth gauges for ~£10.

It's not generic pressure but specific for model, make, engine etc, etc.. If you don't believe me, pls check i.e. two Octavia's 2.0 Diesel on the same wheels, but one with better spec (leather seats, sunroof) and you will see different pressure for both vehicles even if the tyre size is the same. Basically, if you ignore manufacturer recommendations, you will destroy your tyres... Just saying...

58 minutes ago, Lyminton said:

It's not generic pressure but specific for model, make, engine etc, etc.. If you don't believe me, pls check i.e. two Octavia's 2.0 Diesel on the same wheels, but one with better spec (leather seats, sunroof) and you will see different pressure for both vehicles even if the tyre size is the same. Basically, if you ignore manufacturer recommendations, you will destroy your tyres... Just saying...

Sorry, I meant "generic" to engine and trim level in $shell, and not specific to a tyre manufacturer.

Edited 28 March, 20179 yr by KenONeill

I run my Goodyear Asy 3s at the factory pressures and they feel just fine on the road.