[V8] Engine Speed sensor??? - threadjack

[Kneale Brownson]

I had an 80s SAAB that would develop fuel line blockages when the temperatures got down to zero or lower unless I fed it some Heet.  
   
  I think most fuels today are formulated in the winter with some sort of antifreeze properties.  This is the first time in a long time I've used Heet.  
   
  My thought was not the fuel in the tank or lines from the tank but maybe the lines around the engine where some condensation occurred while the car was sitting in a sudden big drop in temperatures.  We went from something like 47 to below Zero in a period of three or four hours.

Scott Simmons <indischrot at gmail.com> wrote:
  Glad to hear it, Kneale. I'm interested if it ever happens again. 
Usually those sensors go back when they get hot, but maybe cold too? Or 
maybe the car just didn't want to work in weather that cold?? "Screw 
you! I ain't going anywhere!"

Has anyone ever had definite proof of fuel lines freezing up in a 
vehicle they owned? If so, what year was the vehicle?

My dad always added Heet, even though he parked in a heated garage. I 
was raised to always add Heet if it was going to get too far below 
15-20. I stopped one year and have never done it again. Never had 
problems. Never heard of anyone ever having troubles (on a vehicle made 
after 1980).

It's the water that freezes, not the gasoline. Non-venting tanks 
since.. uh.. 1973 mean very little moisture-laden ambient air in the 
tank means very little moisture to freeze.

So, again, anyone ever had a line actually freeze up?