Gentleman,
It was only a joke about the "Expert with the suitcase" it is what we say here in North America ... no pun intended I assure you
As for the air being dry, well it all depends how your friendly neighborhood garage owner keeps his system I'm sure you are all aware of that. I've worked in power plants most of my working life and can tell you with certainty that not all air supplies are free of moisture. If you use instrument air, why yes you have a better chance of assuring yourself that you are using dry air when inflating your tire(s).
My former M3 had nitrogen inflated summer tires. I never had a flat on my summer tires and pressure over 4 years changed very little (I topped it up with air as needed over the 4 years I drove the M3). My winter tire set on the other hand changed quite a bit, mind you the car saw cold and changing winter temperatures.
I use a fairly reliable air pump I keep in my garage, mind you I make sure humidity is at it's lowest point when I do top my tire pressure. Then again with aluminium wheels I don't think we have to worry too much about corrosion of our wheels. I worry about cracks in the wheels
much more on my 19 inch wheels.
here is my air pump that is in my garage and pressure gauge I carry with me at all times.
http://web.me.com/solgain/My_New_BMW_Z4_sDrive35i/Photos.html#26
Cheers,
Rolf-Dieter
It was only a joke about the "Expert with the suitcase" it is what we say here in North America ... no pun intended I assure you
As for the air being dry, well it all depends how your friendly neighborhood garage owner keeps his system I'm sure you are all aware of that. I've worked in power plants most of my working life and can tell you with certainty that not all air supplies are free of moisture. If you use instrument air, why yes you have a better chance of assuring yourself that you are using dry air when inflating your tire(s).
My former M3 had nitrogen inflated summer tires. I never had a flat on my summer tires and pressure over 4 years changed very little (I topped it up with air as needed over the 4 years I drove the M3). My winter tire set on the other hand changed quite a bit, mind you the car saw cold and changing winter temperatures.
I use a fairly reliable air pump I keep in my garage, mind you I make sure humidity is at it's lowest point when I do top my tire pressure. Then again with aluminium wheels I don't think we have to worry too much about corrosion of our wheels. I worry about cracks in the wheels
much more on my 19 inch wheels.here is my air pump that is in my garage and pressure gauge I carry with me at all times.
http://web.me.com/solgain/My_New_BMW_Z4_sDrive35i/Photos.html#26
Cheers,
Rolf-Dieter
