Torque Aluminum Wheel Nuts?

[Fundytrail]

I have been told by fellow RVers that you should torque aluminum wheel lug nuts more often than those on steel wheels. :?
Is this true, if so how often?

[MASTERTECH]

yes this is true aluminum wheels will expand and contract more than steel rims this is why i recommend you should check them every trip

[bfred]

We own a 39' Airstream with 22.5 wheels on a freightliner chassis, but I cannot find the torque value anywhere in the manual. It is a 2004.
Can you shed any light on this?

[MASTERTECH]

the settings we use at our shop is 400 to 450 foot pounds i also just checked out alcoas web site and theres no info there either so i emailed them when i get the response i`ll let you know