tanny fluid level???
The plugs are supposed to last 100k I changed mine at 40K.
anyways, here's the scoop (since the book is WRONG). 3.7 litres NOT 5 or just to the bottom of the 80 mark on the universal dipstick.

Its markings at 25 degrees Celsius ATF temperature range between 10.3mm to 21.3mm.
Its markings at 80 degrees Celsius ATF temperature range between 54mm to 65mm.
it's an easy job and well worth the minimal trouble or outlay in costs and i highly recommend it for those with higher milage cars.
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