I've been using a 180 degree thermostat in my 90' 350 TBI Chevy truck here in California for years. I'm told that using anything below 192 degrees will slowly destroy my engine. The argument I've been hearing is that the ECM will run the engine rich until it reaches that temp. Now I've scaned the ECM in real time at operating temp and the O2 sensor readings and Intergrator numbers at are within an acceptable normal level (124 to134)- not too rich or lean. The BLM numbers are on the low side of 128, around 120. The spark plugs look great!
Will using a 180 degree thermostat ruin an engine or is the just a myth?
Eric
Will using a 180 degree thermostat ruin an engine or is the just a myth?
Eric