ok i have a b16a and i got my oil changed about 1000 miles ago and i check it today i am 1 quart low ok i dont see any blue smoke or any else exhaust very clean even when reved high i didnt check in throttle body to see in there but its not leaking but here is my situation i have no 5th gear so when i travel on E-way im at 4k-5k most of time on freeway and i do some racing also can this be the problem because on e-way always at high revs plus i race or is something very wrong with my car by the way runs the same as always did really strong HELP PLZ

 

you got your oil changed? meaning u didnt do it yourself...if its a swapped car they usually go buy the oil level of the original motor, add oil if it leaks or burns it could be a number of things

 

i had an oil leak from not tightening the drain plug once, check the simple stuff like valve cover gasket