The NOACK Test is done at 482 Degrees Fahrenheit, I have a big problem with this test, it is not realistic. I will do the Lawnmower thing; I aimed an Infrared Gun at the Spark Plug area on a Briggs engine and I got a temp reading of 300. I did a temp reading with a probe in the oil fill hole and only got a temp of 210. This is on an Air-cooled Engine with what I am talking about. This is not on a water-cooled engine, let's talk lawnmowers again. I have a neighbor with a Water-Cooled Engine on his mower that only has an oil temp of like 190 whereas with my air-cooled riding mower I have a temp of 220 with the Thermal Probe.
If the HTHS Test can be done at 300, let's do the NOACK Test at a more reasonable Number.