right....depending on the engines age it will burn a bit of oil or leak some...they do tend to do it from new as well ...water can leak from the tinniest of places so you might find you need to top up but not see it leaking....the t2 runs at 7psi from standard ,if you want to run a little bit more you can..would go more than 10 psi with out chipping the ecu...boost gauges are...'you get what you pay for' im affraid...buy a cheap one and it wont last fiive minutes...buy the most exspensive one you can afford for piece of mind ...hope this helps..