99 civic si bone stock....... changed oil 1000 mile ago with mobil 1 10/30 and i checked the dipstick every week and i lose a lil a week but the 4th week the dip stick only half. so i had to add about almost a qt. today. what cause my car to burn synthetic oil? no leaks at all

 

If I said it's normal, would that answer suffice?
It's thought that the high revving nature of the Honda motors make it "normal" to burn a little off.
It's also a normal trait of Mobil 1. So, combine the two, and it's slightly exaggerated.
I use Mobil 1 0W-20 in my bone stock 26,000 mile 02 Si, and it's down a quart by about 6000 miles.
Not that the K20A3 in my car is high revving, but I do use Mobil 1.
It's been discussed on http://www.bobistheoilguy.com if you care to read more into it.
And not all cars will burn oil, making it even more confusing.

 

that sounds about normal for me, but I burn regular 10w-30 , 1000 miles is alot of miles also

 

sounds like you like to rip vtec..
make sure you check the levels often, don't want to run it with low oil pressure

 

Its normal to lose a little oil, depending on how you drive.

 

My D16z6 with ~111,000 miles uses NO oil not even a little, and I use Mobil 1 5w-30 and I rip VTEC all the time, is that like a sign that my motor is in really good shape? I mean I swear to God I fill it right to the full line on the dip stick and everytime I change it (Every 2500 miles) its still exactly on full, not even a centimeter lower

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DelSolSi93 &raquo;</TD></TR><TR><TD CLASS="quote"> is that like a sign that my motor is in really good shape? </TD></TR></TABLE>

Possibly. But I loose 1qt every 3K miles in my D16Y8 (110K miles). I rev high, and hit VTEC alot; but I just tested my compression, and it's 210 across the board. So the motor is healty, just burns a bit. Mobil 1 will burn off faster than other syns as well.

 

well,I know that your car doesn't relate to this example,but I have heard that cars that never used synthetic oil b4 will eventually leak from hard to spot places once the switch to synthetic is made.I myself have a d16z6 with like100,000 miles on it and I switched to synthetic oil [castrol syntec 10-40 all year round]like 2 yrs ago and the car has never burned or leaked oil.Maybe,you should try castrol oil. How long have you been using syntec oil?

 

dang i also wondered where my synthetic oil burned up also? damn vtec...