Hi again VSL,
Actually when it comes to maintaining the car, there's a few thing
I'll check myself but a few things I'm not so sure if its good to
DIY or not so I better don't touch it. I do have the car menu, but
seldom refer to it.
Anyway, to ans yr qns, its theoritically okie to add water to the
coolent bottle, but its better of you just go and buy a bottle of
coolent (which is very cheap) and pour it in. Water is normally
added to the radiator tank. Top it up if the water is low. But do
not open the radiator cap if the engine is hot. Remember. There're
chances that it will split. During normal services, they'll
normally top up the battery water for you. But its easy to top it
up yrself as well. Think a bottle of engine oil cost only abt
$1.20. If all these are in okie level, you can wait till the
servicing.
You can check the engine oil (There's a gauge in the "stick" that
will you can read from). If the reading is low or the oil is thick
and milky, its time to change engine oil. Engine oil is something i
don't do it myself cos i dunnoe how to. One good engine oil is
shell helix ultra (try to use good one can last 10000km, lousier
one cheaper but normally advisable at 5000km).
Others like brake fluid, power steerling fluid I don't add myself
cos I dunnoe what brand is good. But normally, these can last for a
very long time, so I think it should be okie not to check. If you
are worried, can always take a peep. Not sure if its advisable to
change yrself though. Oh yah, during normal servicing, spark plugs
are usually change. Good spark plugs usually gives u more power,
but that's always in the beginning part. Last for a few weeks only
usually, then u will feel the power loss.
Haha, talk so much, actually i only know the basic. Very basic in
fact. Hope the above helps. Once you got hold of yr car thoroughly,
u'll know what's wrong when u drive next time, like some extra
sound or uneven handling of the car.
