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I think some owners or shops are putting in DOT3 which is lower-boiling. I looked at several shops in my area (in the USA) before finding DOT4. An old fashioned auto parts store with real guys behind a real counter had it in small cans.
If you are just trying to renew old brake fluid and don't now have any air in the system you can use a plastic syringe and a tube to gently pull fluid out the bleed at each caliper. I found a threaded fitting that would enter into where the bleed screw was. It was nylon or delrin with the proper thread. You don't need to push on the brake pedal at all or have the car running, since the system is open at rest. Whatever you withdraw you must replace in the master cylinder before the level gets low, and you should work slowly, to ensure you won't introduce any air.
This can even work if you are replacing a caliper. When you remove the caliper plug the hose end so fluid will not run out through the system. Prime the new caliper with some fluid, reattach the brake line and pull a couple of hundred ml of fluid through the caliper's bleed, before any small amount of trapped air starts to move.
For a more drastic repair such as new master cyl or other major part, where air has been trapped, you would need to follow the official procedure.
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