Valve extenders safe?

I installed the Borg dually valves several years ago when first got our Class A Motorhome 7 years ago. On the inner tires mostly, those long stems leaked and leaked, no matter what I did. Very slow leak, though, was just enough where I always seemed to have to top off the tires by a few pounds before every trip. Had tire shop remove the tire from the rim, check the valve (and seals inside) numerous times, they never could find why it was leaking.

Something about those really long valve stems just isn't right, and I found they always leak gradually.

One day I finally had had enough with those long dually valve stems and their slow leaking. Had the shop take them off and put on regular valve stems, with AIRLESS braided extensions. Never had a problem again, and I've been using those braided extensions for several years now. I still use the Dually valve U shaped valve stems on the outers, they work fine. However, the long ones for the inners always leaked, so I did away with them.

Whatever extension you use, its very important if you use extensions, that they are airless extensions. Airless as in, extensions have no air pressure in them except when you put a gauge or air hose on it. That way, if it works loose, you aren't going to lose any air. I won't use any kind of extension that has air pressure in it all the time. Those are just asking for trouble, IMHO.

Not really sure why those Borg dually long valve stems always leaked on the inners, but they did. Is unfortunate, as otherwise those dually valve stems are a great product. They work great for the outer duals.

Use the Borg one piece extended valves. They are solid and quality. No issues with leaking.

It depends on whether it's a mid-year Cayenne, the Cayenne's made after October 27th will not accept any air with an oxygen level of more than 7.2%. This occurred for the three months after that date, any Cayenne's made before or after that date have no issues with standard air. Although they may be down a bit on pepper, and acceleration may suffer.

Dear all, I am waiting for the below updated information.
I want to add air to tires for 2013 cayenne. Is it ok to use ordinary air?

I have the braided stainless , been on the 5 years I have owned and we’re on when we bought it.. I can check both Dulles no problem.

mgirardo wrote:
Our Jayco Class C came with valve stem extenders. They worked okay. We had a problem once when I went to air up one of the inner dual tire and it wouldn't take air. I had to pull the simulator, remove the extender and put it back on. I had to do this twice before it finally started to work properly.

When we replaced the tires, we had the tire shop install Tire-Man Dually Valve Stem kit. These made checking and airing up the tires so much easier (even easier than with the valve stem extenders).

-Michael

I also purchased the Tire Man extended Valve Stems,several years ago and I am very happy with them.

The problem is that Chuck,the original designer of them has passed away and it seems that His business has passed with him.

The only alternative to his is the BORG line. They are a copy of Chuck's original design,and I am told they work well.

Our Jayco Class C came with valve stem extenders. They worked okay. We had a problem once when I went to air up one of the inner dual tire and it wouldn't take air. I had to pull the simulator, remove the extender and put it back on. I had to do this twice before it finally started to work properly.

When we replaced the tires, we had the tire shop install Tire-Man Dually Valve Stem kit. These made checking and airing up the tires so much easier (even easier than with the valve stem extenders).

-Michael

Every braided steel extended I've use has either leaked or the pop rivets have pulled out of the hub. With and without TPMS sensors. Next time I buy tires, I'm having the shop put in these.

The stainless braided ones tend to leak if under constant pressure.

Buy quality, install correctly and you are fine. Two years and 10,000 miles and no crises yet.

Dave