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Why Does Duramax Have This Exhaust Tip?

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It's for the venturi effect and allows the exhaust gases to be cooled before the. exit the tip, which then reduces the chance of burning someone or catching something on fire.

The 1,000 degrees fahrenheit exhaust during re-gen is pretty hot, with paper burning at around 480 degrees, or so we are told. I could understand why you might want to cool down. Diesel emissions technology really has helped to clean up the cities, even if it some places it's pretty silly like on farms and remote areas. But I guess you can't have one farm tractor to work the land in Southern California where pollution is a problem while in South Dakota there is little issues with air pollution.

Crouse Hinds PCE-3000 Traffic Controller- Dials And Cams – YouTube.

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Albany has a lot of the circa-1950 Crounse-Hinds of Syracuse Traffic Signals and controllers. Quite reliable, they don't always work properly in cold weather.

The controllers (shown in this video) are prone to malfunctioning in cold weather due to the grease binding up and causing 5 minute yellow lights and 20 minute red lights.

Here is some of the old traffic signals, as shown on Youtube: https://www.youtube.com/watch?v=jryVhVsYV_s

The Chevy Bolt Recall & The EV Battery Fire Problem

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I tend to think the EV Battery Fire debacle is a whole lot of bull about nothing -- cars catch on fire from time to time, as powering them takes a lot of energy, and when you have energy you have fuel -- be in the form of the battery or gasoline. And both burn really well. But it's good they are fixing this issues now before the cars become even more popular.

I thought about getting an Chevy Bolt eventually, they might be a good car once the bugs are worked out fully. Kind of like the Corvair, which was said to be a great car by the late 1960s. That said, I have a friend whose had a few issues with her Bolt -- making random noises and other issues and GM has been a bit difficult to work with ove warranty work. My other, much bigger issue with the Bolt is it doesn't use a heat pump but only resistance heating, which means running the heat in the winter can be very taxing on the batteries, leaving to quick discharge.