What tire pressure are you running on the OEM 19's w/ Run Flats?

Don't have the door jam here to check.
Thanks in advance

Originally Posted by ameritrades

Don't have the door jam here to check.
Thanks in advance

32 PSI all around (as per the door jamb).

I'm running on Pirelli P Zeros run flats 275/40/19 and 245/45/19(same as 750 specs). Not to sure in PSI but the machine reads 240 which the techs pumped on all 4 tyres.

Originally Posted by SAMLAMBO

I'm running on Pirelli P Zeros run flats 275/40/19 and 245/45/19(same as 750 specs). Not to sure in PSI but the machine reads 240 which the techs pumped on all 4 tyres.

Most likely that is 240 kPa which equals 34.8 PSI.

Mike

Originally Posted by mdernst

Most likely that is 240 kPa which equals 34.8 PSI.

Mike

Is that to much?

Originally Posted by SAMLAMBO

Is that to much?

Not necessarily. I think it calls for higher pressures for higher loads and for sustained high speeds.

Mike

Originally Posted by mdernst

Not necessarily. I think it calls for higher pressures for higher loads and for sustained high speeds.

Mike

Ok thanks. Does lower pressures mean more comfort?

How are those runflats, are they loud because runflats generally run louder then regular performance tires..My vette has runflats but thats only because there is no spare, otherwise I would have swapped them out.

Originally Posted by Wilassasin

How are those runflats, are they loud because runflats generally run louder then regular performance tires..My vette has runflats but thats only because there is no spare, otherwise I would have swapped them out.

Not at all. Very smooth and quiet and I'm on 19inch rims, using Pirelli P Zeros. Although I have to admit my previous Jag XJ was quiter but it was not on runflats. However the Jag XJ's have always been very quiet cars. Just my opinion.