my car is drinking alot of coolent, just filled it up last week what could be the problem?
A leak somewhere. If you don't know where to start looking, take it to a mechanic or a radiator specialist.
Check your engine oil level. Has the oil started to go a milky brown colour?
Could be a inlet manifold gasket problem. (Very common) or maybe even a minor head gasket leak.
Do a search on both of these on here... it has been covered many times before.
Good luck!
Another problem can be a broken thermostat i have had it on my car where the engine temp rises and coolant simply evaporates and loses its volume to check this check the seal arround the bottom of the radiator cap for splits as the vapour could be escaping from there
It's common to have a leak from the side tanks.