I'm using transmission oil cooler hose for my turbo oil feed well, until I get to the exhaust side, then I switch over to teflon braiding to withstand the higher temps. Question is will the 5/16 transmission oil cooler hose withstand 1 year of use until it needs to be replaced? I'm curious on this...

And lastly, I am using 5/8 high temp heater hose, that is heat insulated at the turbocharger, for my oil drain? Is this adequate if replaced annually?

 

I think the tranny oil hose should be fine as long as it doesn't get heat damage. I have had issues using heater hose on oil lines (both turbo drain lines and catch can lines), and would strongly recommend using something else (hence my question in your thread selling the drain kit).

 

Thank you for your input on that, i'll use it...but only for a short while until I come up with a better solution other than braided teflon...