1997 is a changeover year between short door and long , do you know which yours is ? Easy to tell , are the bulkhead and valances stainless steel (long) or painted mild steel (short)
Assuming a long door , the stated capacity of the tank is 50 litres , having said that the original purchase invoice of my car when new stated "full tank of petrol 45 litres" . I think this shows the accuracy of the sales brochure!
Like you when the gauge reads reads 7/8ths I know I have a full tank.
When the gauge first reads empty I know I have 3 gallons (say 15 litres) remaining, and that is when I start looking for the next filling station.
Have you noticed that when you switch on the headlights , the gauge moves by almost a segment, which can be somewhat disconcerting when driving at night.
I have not tried to calibrate any of the intermediate points as I doubt it would be much use. 95% of the time I fill up based on the hodometer reading. When I have covered 200 miles I can normally get 36 litres (8 gallons in before the first click of the auto-cutoff on the pump. I average about 25 mpg when cruising , less when pressing on.
Last edited by MOG 615; 06/09/21 05:16 PM. Reason: extra information