After five years and 30,000 miles, our extensions have worked great, no leaks and easy to check/inflate tires. I wonder what the failure (leak) rate is for these extenders? We do hear about those that have leaked, but not so much from those that have not had a problem.
Based on my no-leaks experience, I have decided to continue with extensions when we replace the tires in the next few years, but I will get new extensions. I don't want to reuse the existing ones because I think the rubber tubing may have hardened somewhat and won't like being re-positioned in the new installation.
To assure no leaks, I also wanted to have a way to keep them from getting loose on the stem. Rather than Loctite, I am thinking of putting a glob of silicone sealer on the outside of the extension nut where it meets the stem thread. This would resist loosening but be easier to remove and not risk anything getting inside the extension.
As an added level of assurance, I have recently added pressure monitors to the four duallys, I know that adds another potential leak point but then the monitor will report that.
Anyway, those are my thoughts on the subject.
Bob A
