what could be causing oil consumption (1 qt per 700 miles) in my rsx? no leaks or smoke seen. I do accumulate a black soot from exhaust on my rear bumper...however, I read this is from the engine running too rich. please help!!!!!!!!!!!!

 

do a compression test. Then post your numbers up

 

also, what color does your coolant look like? is it the greenish color it is supposed to be or is it brownish?

 

do a coolant test too (you can rent everything from autozone and its free)

 

Too much VTEC.

 

True... Do you get on your car a lot like I do?

 

ya but even with alot of vtec that is alot of oil he is loosing...

 

thats why I said compression test it first, no vtec is that good

 

haha no vtec is not good at all... even in an A3 haha lol

 

my compression is great in all 4 cylinders......I have also changed my PCV valve..thinking it is the crankcase ventillation system. I do have a CAI...I don't know if this is messing up vacuum pressures. It's either the oil retainer ring, valve stems, or the PCV system.

But, which one is the question. Any advice?

 

What other mods do you have? How many miles are on the engine?

 

oil leak?

 

do you give your car 15-20 minutes of rest on level and flat ground before you measure your oil?

 

do you know what a compression test does? it doesnt tell CRAP about oil control rings.........and that is most likely his case if it doesnt leak oil

 

Que? What are "oil control rings"?

Compression test results WILL tell you if you're burning oil or not.

 

Each piston has an oil control ring below the compression rings, which wipes excess oil from the cylinder walls with every downstroke and leaves a light film on the cylinder wall to lube the piston. If the compression rings aren't sealing very well, it's common for hot combustion gases to leak past and cause the oil control rings to clog with carbon. The oil control rings eventually seize into the groove on the piston. Once that happens, they can't wipe effectively, and the oil makes its way past the compression rings and into the combustion chamber.

Not necessarily.

 

if you didnt know what were oil control rings then what makes your statement correct? because you read it online?

you can have near perfect compression and burn oil at the same time
heres an engine that is notorious for this
https://honda-tech.com/forums/showth...ession+burning