Quote Originally Posted by gregozedobe View Post
Define "accurate"

The fuel guage is definitely non-linear (ie the top "1/4" of the fuel gauge covers considerably more litres than the bottom "1/4", which is why the needle seems to take a long time to drop at first, but sinks like a stone as you get near empty.
So they are just like everybody else. my last car had a 55 litre tank and on several occasions I put 57 litres into it and the 5 litre reserve light had not lit up.
In the real old days you would never trust a Falcon if the gauge was even minutely below half full.

Quote Originally Posted by gregozedobe View Post
The analogue speedo is always optimistic, but the odometer is usually very close to the actual distance covered.
That is for legal reasons so you can't sue them if you get ticketed driving at the indicated speed limit. Also they have to allow for tyre wear and inflation and even different sized tyres being fitted.

Quote Originally Posted by gregozedobe View Post
The coolant temp gauge has a software fiddle to keep it reading a constant 90C even when it is actually a few degrees hotter or colder.
Once again I think that's common. IMO they would be better off with a simple warning light (and loud siren ) that came on if there was a problem. A gauge that doesn't really do anything is a waster of space I think.

Quote Originally Posted by gregozedobe View Post
I suspect my external temp reading is 2-3 degrees higher than what it actually is.
Hadn't thought about that. So far I would say mine is about right but I might check it against another thermometer.