Alright....i got a 2000 Civic Si....and im experiencing mad oil consumption...where the expletive is this **** going? i changed my oil at 64K miles and im at 65,300 and im already low n it needs changed again...i did a leak down test on it to check my piston rings...the results were fine no problems there....i only use honda oil filters and mobil 1 fully synthetic oil....the oil sending unit is brand new was just replaced when i did the oil change...any comments or anything would be great thanks.

 

Oil pan gasket
Rear main seal
Crank seal
cam seal
valve cover gasket
valve seals

Is it smoking? Look under engine does your motor look like oil is leaking all over?

 

My engine is fresh looking theres no oil around the header or up front....and nothing by the filter or on the back...you think there could be something with the crank case ventilation system?

 

do you hit v-tec alot? if so it can consume more oil than normal but it shouldent be a lot how low is it. when you park your car is there ever any thing driping?

 

i got an oil psi guage in my car...and when i get on it it should read 80psi and now alll day it just reads 40 psi...i checked the dip stick and its like dribbles of oil...between the two dots on the dipstick....i do hit vtec a lot but not that it should b gone this fast...its usually only when i race if i do...and its the stock motor no swap or nothing...and this problem has been around 4 about 4-5 months...

 

and no theres no oil or liquid under my car when i park it

 

Does it smoke fairly heavy on start up?

 

If no oil is leaking to the outside and it's getting low then it's either burning it or leaking into the cooling system internally (which is unlikely since your car runs fine).

Have you tried to run a different oil? Perhaps the Valvoline synthetic blend high mileage stuff... could be a seal leaking and something like the High Mileage oil can condition the seal if it's something very minor.

 

Mobile 1 synthetic tends to burn off more so than regular oil. Try using 10-30 (im assuming you are using 5-30 right now) Other than that if you are sure it isnt your rings (60k miles tends to be the point where Bseries motors start using oil due to worn components i.e rings) It could be that your valve seals have gone bad.

When was the last time you had your valves adjusted? Regular maintainence is every 15K.

If you have low oil pressure it could be a bearing issue due to oiling problems that is eating/burning up your oil.

I would recomend switching back to regular oil but, at this point it wont fix your oil consumption problem.