
How Well Do You Know Hoses? | MOTOR Magazine
Finally, small-diameter, thick-wall silicone hose is routinely used in DPFE and EGR backpressure transducer appliions. There’s often an ozone-resistant outer layer as well. It’s also the hose of choice where direct exhaust backpressure readings are needed for diagnostic purposes. At my shop, we stock several meters of 3mm and 4mm thin-wall and thick-wall …