Is wire with soy based insulation safe for hot fluids?

[JimPghPA]

Is wire with soy based insulation safe for use in vehicles in applications where it gets exposed to hot drivetrain fluids, such as engine oil, trany fluid, transfer case oil, rear end fluid?

I see lots of wires in tranys now days, and some in engines such as variable cylinder management solenoids, rear end engage / disengage systems and sensors.

I'm wondering if one had to replace a wire in one of these, is common stranded wire found in auto stores and online, now posibly soy based, and if so, might the insulation not hold up when used like this?

 

[slacktide_bitog]

The problem with soy insulation/wire isn't any compatibility issues with oil. The problem is that animals can smell the soy and eat it

 

[silversport]

I thought the soy was used on the exterior to aid in pulling wire rather than anything to do with the operation of that wire...

Bill

 

[repairman54]

Soy based is cheaper than petroleum based insulation to make. If you can save 1/100 of a cent per foot it adds up with the amount of wire in todays vehicles.

 

[JimPghPA]

The original question is still unanswered.

If someone were making a repair and the repair had to hold up in these environments, is it a concern?

 

[JTK]

The original question is still unanswered.

If someone were making a repair and the repair had to hold up in these environments, is it a concern?

Good question. These harnesses and connectors have been around inside automatic transmission environments for decades now. I've never heard of an internal connector or wiring integrity problem. I have seen reports of these harnesses leaking at the bulkhead connector exiting the box, or seeping fluid through the insulation itself.

 

[JimPghPA]

An additional sidebar to this question is, it might be a problem that manufacturers know about and have used insulated wires without soy for those applications, and say nothing about it.

Or, it may be that it is not a problem at all.

It is not often that people who work on vehicles have to replace wire in any of these environments without using some already made harnes or part with the wire already attached. So if it is a concern, maybe these parts have the correct type of insulation and no one gives any thought about it.

But, just in case someone does have to put a new wire into a place with those fluids, it would be nice to know if it is a concern.

???????

 

[Pablo]

Not the kind they used in 1980's Volvos! Terrible!!