Top 3 gauges?

If your car will take a scangauge, then you will have multiple gauges available in one unit. 4 can be visible at any one time.

Turbo Diesel, EGT, Boost pressure and Water Temp. Also run block temp and oil pressure alarm as well as low water alarm. Petrol, Water Temp, Auto Temp, maybe Oil pressure, not really sure what the third gauge should be. I am sure you will get a variety of answers.

Damian

You do not give us very much information to go on, ie what year model vehicle, has it got an OBD11 diagnostic port?

Should your vehicle be recent enough to have the OBD11 port then I would suggest that you look very closely at the Scangauge11, as this unit just plugs into that OBD11 port and can then read off the information that is being fed into the engine management system. It is then your choice of what 4 parameters that you wish to monitor.

The options that are available for your particular vehicle may, or may not, include such things as exact coolant temp (as most manufacturers are now fitting temp indicators that are very vague), correct road speed, Auto trans temp, voltage, air intake temp, barometric pressure, ambient temp, manifold vacuum or boost (sometimes shown as pressure above absolute zero), ignition timing, engine RPM, percentage throttle, percentage engine load, current fuel consumption, average fuel consumption, distance to empty or fuel used since last fill, and there are more.

Also the Scangauge11 can be used at the end of the day to tell you such things as time operated, maximum road and engine speed for the day (since the last 10 hour of engine off), distance travelled that day, average speed for day, and there are more.

The unit is normally preset for most of the common functions, but can require the input of some codes for specific functions on your particular vehicle. These codes are available on their web site.

All this for about the price of a good stand alone gauge.

Enjoy your off roading.
Athol

If you are thinking of buying 3 expensive one purpose gauges, then they will cost more than an electronic gauge which will show more as mentioned above.
Unless you are towing you are unlikely to need boost or egt (which is only available on later model vehicles) because the engine ecu is programmed to ensure they don't get to an excessive figure with normal use.
Not sure with a Mitsubishi diesel, but their petrol engines had chain driven oil pumps which broke and totalled engine through no oil pressure. Oil pressure won't be available on an electronic gauge so trust is needed there or a specific gauge. If engine is good, then oil pressure isn't a problem.
If possible 1. trans temp will be useful along with 2. road speed for highway, (assuming STD tyres are fitted), 3. Engine coolant temp, as it is dependent on both engine and auto heat inputs. Most others you have no control over anyway. Voltage maybe.

I use Transmission temp, Coolant temp and because my fuel gauge can't handle my long range tank plus large reserve, Distance To Empty. All on a Scangauge II.

Just been looking at the analog ones and yeah their at least 100-150$ each. Why so much? They must be more accurate i guess?

But never thought of a scangauge. I drive a 2005 triton, no idea if its compatible.
Ill definitely get one if possible, on top of maybe an anolog oil pressure gauge

My 80 series is definitely not on the scan gauge list, so I have a "Engine Guard" about $100, that's engine and trans temp taken care of, (factory gauges aren't worth a knob of goat shit). Tpms, a cheapy off fleabay ($50) and does the job admirably, so that's tyres taken care of too. A volt meter "Baintech" ($65) to give me an idea on what the dual batteries are up to, as said before, everything else will take care of itself, your triton should have a low oil pressure shut off. You certainly don't need to spend excess coin to keep up with the Jones's

Ultragauge leaves the scan gauge for dead. More visible alarms, bigger screen and has more choice of gauges than scangauge..