I am using a ScanGauge II. A ScanGauge III is nicer but it's bigger and I couldn't figure out where I wanted to mount it. I mounted the smaller ScanGauge II where it covers the bottom part of the tach (who cares about 500 rpm most of the time?) and it covers up some idiot lights. I use it to display (actual) engine temp, engine oil temp, transmission gear (1-10), and transmission fluid temp.
I checked engine oil pressure and voltage but the dash gauges were close enough (unlike engine temp), so I display the ones I listed above.
L8T gasser.
Thanks. On my suburban there are no external trans fluid lines. From what I can deduce by exploring different radiators for the 2018 suburban, there is the high capacity towing package which includes transmission fluid cooling and engine oil cooling via a single high capacity radiator. Without the high capacity towing package the radiator only cools the engine oil. Basically this is what I want to confirm. Really trying to determine if any 2018 suburban cooling system came from the factory with a cooling radiator that is external to the coolant radiator.
I have 2018 Suburban with 6L80 Trans and 5.3L engine. I am chasing a high temperature problem for the transmission. I am wondering if all such suburbans have passages in the radiator to cool the transmission fluid. I was trying to get a temperature reading with a infrared temp gun off of the trans lines into the radiator and could not find the the trans lines into the radiator. I know that on some 2018 suburbans there are trans lines into the left side of the radiator, but I can't find such lines on my Suburban. So what I am looking for is definitive confirmation that some suburbans do not have transmission fluid lines into the radiator.
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