Overheating engines consuming more fuel?

[Securus]

Nub question. Does an engine in a overheated state consume more fuel than one operating at normal temperature? Or is it just a matter of it going poof once it fully overheats?

[Lazro]

Nope, an overheated engine simply goes boom once it reaches its limit.

[Securus]

Annnnnnd boom goes the dynamite... Thanks!

[Dooz]

Nope Only explodes

[Michael Kim]

I think it does, if you look at the specific impulse

[Millitron]

Were you running the engine on the ground? Or just watching the specific impulse as you climbed? Because specific impulse will vary with altitude.

[roosterr]

Not a newb question, thanks for asking, it is a great question. I have been playing for almost 2 years and with my latest creation my first stage was struggling to perform and burn too much fuel. So I began to wonder if my throttle settings and the overheating (which I always like to keep to a minimum) was a factor. I never figured out for sure. I did figure out that one of my fuel lines (x4 with symmetry) was detached and I was flying with 4 fuel tanks that were not being consumed :-) . I fugured that out a few days ago, but I am glad you asked because I was starting to wonder.

Now that the rest of you "experts" have provided an answer, assuming it is correct, I am going to push my engines up to the red line for speed.

[Killerdude8]

Technically, Yes, Actually? No.

When you are overheating, You are throttled up high, therefore using more fuel, Throttle down, to stop overheating and lower Fuel usage.

[Michael Kim]

Were you running the engine on the ground? Or just watching the specific impulse as you climbed? Because specific impulse will vary with altitude.

I have two same engines with different overheating situations