I run wide band full time. It's obviously invaluable when tuning but also gives you real time data on how the current motor is running. It can significantly save time when troubleshooting (i.e. do I have a fuel or ignition issue).

When I went from a stock engine to a supercharged build I added gauges to the dash - oil temp, boost, water pressure, fuel pressure, and AFR. Now I find myself monitoring the oil temp gauge the most out of all the gauges on the dash. That gauge alone sparked me to upgrade my oil cooler a couple times to get the size and line size correct.

I am going to order the oil temp gages but need a little help. There's a variety of sending unit sizes so I need a little help with where it goes. I have a spot in the side of the oil pan which I think would be perfect however it's pretty high on the side. I stuck a bent piece of wire in the hole and down 2" and no oil. Oil shows full on the dipstick. I'm assuming that it would get oil splashed on it however that doesn't seem to be the best location for actual data?. Side question, why is there a plug in the side of the oil pan on a factory standard 7.4" Looks like it could be used for a turbo return line?
There's a spot on the block above the oil filter. Is that for pressure only?
I also use the stock filter relocation block still located by the exhaust riser. This would be oil that was already cooled so probably not the info the gage is looking for?
I use an onboard pump attached to the drain plug for changing the engine oil instead of sucking it out the dipstick tube so not sure I could use that location unless there is a fitting that would accommodate both the sensor and the oil change pump.
Thanks for your continued help.

Put on the filter head, easy
Its before cooler so you will see how hot the oil gets before cooling

Thanks for starting the thread. Been wondering where to add in an oil temp sending unit myself. Filter head looks like a great option that I hadn't considered before.

Agreed on definitely having an oil temp gauge.
I would put it where the oil is hottest (going into cooler).

I have (beside the tach, Speedo, and fuel) the following analog setup:
vacuum gauge to tell me how hard it’s working and if you know how to read them very helpful
oil temp gauge
engine coolant gauge
Volt meter (hooked up so I can see volts before starting and from alternator when running)
Additional sep digital volt meter for house and starter banks.
I also have trouble light and separate lights for bilge pumps that come on when they activate

digital add on
I added a Bluetooth scanner hooked in to my harness that transmits to my tablet to allow custom monitoring in real-time from the ecu (afr, revs, temps, whatever) I can have digital info in real time that way.
In addition I can control my mfd wirelessly on it too.

AllDodge, I'm probably not understanding your location of the sending unit. My understanding of the install of the cooler and lines is that the oil line from the block goes directly into the cooler, out of the cooler to the filter, out of the filter to the engine block correct? Are you talking about the location on the block above the filter as shown in the pic? Thanks for your help.

Xcomunic8d, So you would use a "T" at the inlet to the cooler that the sending unit attaches to? There is an extra connection point on my new coolers but I thought that was in the path of water. Thanks for your help.

Im assuming that port is a zinc on your cooler? Hard to know without pics

im coming off my remote filter into a T with the sender data in that input hose. Put it wherever is convenient for wire routing. My thoughts mirror the others here what’s the temp before the cooler.

Install a remote filter and install in the filter head
In pic see the brass fitting on the filter head, that is the sensor which goes to the gauge