Review on Vibrant Performance 20425 Heater Hose Black, 3/8 Inch - High-Quality Heat Resistance for Efficient Heating Systems by Daniel Robinson

I bought these in January to restart the transmission cooler lines when a Derale thermal bypass is added. After about 4-5 months, these lines become dirty due to oil seeping through. I used these on the initial install and they did the same thing, but I figured maybe this was my clamp choice, definitely not as the new lines were continued with some good quality stainless steel clamps that grip the full diameter of the hose. Not to mention that they are bad. Just don't use them for oil. I'll post pics when I get a new hose to replace this junk.