Community Lounge, Introductions and General Discussion Discussion, I just have to share in General Discussion; Originally Posted by mandy92887
Do you know where I can get some info and threads on a 1951 cadillac? Trying ...
Nothing wrong with 221. That's well into the "normal" zone for pretty much all modern engines, Cadillac or not, aluminum or iron. My old 4.X's as well as the iron block engines in my last job's pickups run up to mid 220's or so idling on a warm day. None of them have cracked/warped components, nor have had gasket problems. Most of my 4.X's have/had reached 200k miles.
Besides, the hotter and engine is, the more efficient it becomes
Cadillac never should have included an actual temp readout or gauge on their newer cars. People get too paranoid. Idiot lights would have been good enough - or at least something like the oil pressure gauges on Fords from the last 20 years where it's really just an idiot light in disguise (it stays at the 12 oclock position and doesn't move unless there is no pressure - which pegs the needle to the left). Notice how nobody with a "c"-body Cadillac notices or cares about the engine temperature until they have an actual problem.
Any gasket or longevity problems that Cadillac engines have had do NOT stem from incorrect operating temp. It is in-line with the industry and therefore is beneficial and necessary to achieve competitive efficiency. Any problems stem from design or material flaws down the line, which fail because they are flawed and cannot be repaired by a lower operating temp.
Remember when the early CTS-V guys noticed rear-end problems? Was it blamed on incorrect power output and remedied by downtuning or did they focus on correcting the rear end?
Good points, all.
The characteristic cooling map for the BMW M62TU V8 engine does not even begin to open the thermostat until 110*C or 230*F