160 vs 180 thermostat

I think most of lasting longer has to do with overdriven transmissions , it is like not putting as many miles on the engine -----------less rpm.
Here's my theory on why they last longer..
think about being able to turn off the fuel injection and the ignition gets to burn those last bits of fuel before it shuts off. Then think of a carbureted car that shuts off the ignition and the Pistons are still going up and down sucking down the fuel and air on top of the cylinders which now at startup has washed the oil off..