This is a broad question, but under ideal circumstances, no engine should burn oil. The age and periodical care of an engine will greatly affect how it runs and retains its fluids. As an engine gets older, scratches and pots in the cylinder walls can form if it is not taken care of properly and allow oil into the comustion chamber on the down stroke, thus causing oil burn. If an old engine is burning oil, this is likely the case. (or it could be a worn head gasket) So, noramly a little is expected, but more than half a quart being burnt every 3000 miles is excessive.
You're talking about the dipstick on your car I assume. Many cars regularly burn or leak a little bit of oil. Just keep in in between the two notches, that's the operating range.
it will burn into pieces
worn piston rings or barrels
That would be a big NO! My A6 is 4y/o. Does not burn a drop of oil. Barely uses gas, we love this car.
The oil capacity of a 1996 Subaru 2.2 is 2.5 liters. Changing the oil regularly helps to maintain the cars performance.
between 4 & 5 quarts. I usually buy 6 quarts and keep the extra in my trunk as older cars tend to burn or leak some oil. I recommend check your oil level every once in a wile in between oil changes.
short answer: yes. the oil pump o ring can wear out, especially in older cars.
If engine fluids have not been maintained properly it may lead to oil burning, but that's true of all vehicle engines.
No not really. My 93 Probe Gt does about the same. I put a quart in yesterday after about 1200 miles since my last oil change and a 4 hour trip to New Jersey. But my car was beat on before i got it. I maintain it now but yeah it's normal for older cars to burn a little bit of oil.
Well, it is normal for older vehicles to develop some leaks (small) and for most cars to burn oil (1/2 qt every three months). However, it sounds like you should really talk to your oil changer and ask them what oil they are using and what the old oil looks like. If it has water, coolant, or has a big leak you need to look at repair/replacement.
Check the drivers manual, it will show you where the engine oil goes in, how much to put in and what type to put in. Normally the filler cap is on top of the engine itself, on top of the rocker or cam covers. Modern cars have a picure of an oil can moulded into it, older cars may have the name 'oil', or equivalent language such as 'Olio', for Italian cars.
Chevy Impala or Cavalier are good cars. Any car will do as long as you make sure to maintain and service it regularly; oil change, tire rotation and inflation et cetera.