How much transmission fluid do you put into a Volvo 240?

Assuming you're talking about the AW70 transmission. When changing the ATF, I disconnect the return ATF cooling line from the top of the radiator and clamp on a clear 3/8" I.D. vinyl hose to drain into a 2-quart jug. Start the engine and let 2 qts drain out. Stop the engine. Add 2 qts of new Dexron III by a funnel on the dipstick tube. Repeat. Repeat. Repeat. By this time 8 quarts have been replaced. Connect the cooling line to the radiator and you're good to go. ATF capacity of the AW70 is 7.8 qts.

-Bob, 1986 Volvo 240DL wagon