07-03-2018, 05:11 PM
Join Date: Mar 2009
Location: Georgetown, Guyana
First - the reason there's a warning not to use 4WD on hard surfaces is because it's a part time 4WD with no center differential, and "drive train windup" will occur - it has nothing to do with temperature.
Second - there's very little reason to add an "exhaust" temperature gauge to a gasoline engine, likewise an oil temperature gauge - if you have an automatic transmission, it's not a bad idea to have a temperature gauge, but if it's a manual transmission, there is no need for one, and the same goes for the transfer case.
That leaves us with the coolant temperature - personally I find the standard gauge quite adequate, I recognize that it doesn't tell me if the engine is at 50*, 60* or 80*, but, it does tell me what I need to know, which is that it is within the "normal" temperature range, which is really add I need to know.
One last thing - and this is probably personal preference - I will NEVER fit digital gauges to my vehicles - with an analogue gauge, I can tell, at a glance, that the needle is within the "normal" zone - with a digital gauge, I have to read it, understand what the numbers indicate and then decide what that number means.
Tell me quickly is 212*F good or bad? Should I be worried because it's at 215*F and that's above the boiling point of water? It went up to 195*F and then dropped back to 175* and now it's rising again - is that normal, or should I be concerned?
These are all perfectly valid questions, and they are actually the reason that the coolant temperature gauges on most cars work they way they do - they are intentionally designed this way so as not to cause owners undue heartache.
98 - 1.8 Mitsubishi Pajero iO
98 - 2.0 Suzuki Grand Vitara - SQ420
05 - 2.0 Suzuki Grand Vitara - JB420
15 - 2.4 Kia Sportage