Losing Oil

[stig mick]

I changed the oil in my S14 6 weeks ago I check it every second day

The level never changed till the other week when I got it dyno tuned

Ive now lost 500ml in 2 weeks my mechanic says the engine is healthy and I'm not leaking or getting any blue smoke off the the exhaust or any smoke out of the oil filler cap and I don't have a catch can

Where's my oil going?

[SargeRX8]

Rear seals? Cam seals? Crack seal? Oil filter not tight enough? If it's not burning it most likely is dripping. Leave some news papers under you car and look for drip marks. He can't say you're not leaking when you clearly are...

Edited July 2, 2011 by SargeRX8

[stig mick]

No I'm saying I'm no leaking I have checked all over the car no leaks

Where I park it at work the concrete is very clean I park in the same spot everyday and no leaks or dots of oil on the ground,

I do get a bit of white smoke on cold start up but that's just condensation right?

[SargeRX8]

White smoke is condensation in early mornings. Black smoke is normal too on startup just indicates the car is running rich to warm get things flowing. If you blow white smoke while driving its water. If you blow blue smoke its burning oil. If you are certain you are losing oil, it must be going somewhere. I don't know if the oil would retain it self but if you leak oil from the rear main seal, it might be pooling up in the bellhousing of your gearbox but this is very unlikely as the oil will definately seem through the seam where the housing meets the engine. This is a tough one. If you aren't burning it, you aren't dripping it, I'm stumped. Unless its leaking out of your head gasket, onto your exhaust and burning up before you have a chance to see it. This happened in our van, oil was leaking straight onto one of the headers(dangerous shit) and burning up. We had to keep topping it up then somehow the mechanic said its leaking oil onto the exhaust and burning up... Then again we had drip marks on the ground..

Have you recently added anything to the oil system like a cooler or relocation kit? Is it still losing oil after you top it up or has it stopped?

[stig mick]

I just topped it up I'll see if it loses anymore

No nothing added to the oil system

Turbo is working fine so I don't think the turbo is leaking from a seal, it definatley doesnt smoke after warm up

It's got me stumped too

[GTR-N1]

Have you got a diffuser tray under your engine? > Checked that? > If it's wet, then check Crank seal and below it again?

[stig mick]

Nah no under tray, no wet spots under the engine

[SECURITY]

Check the lowest point of your intercooler piping as well as your intake pipe where the breather hoses connect.

[stig mick]

Ok now don't laugh at me... I did burn alittle oil during the dyno tune I'm guessing because there car was rum very hard

But when I thought I lost more it was because... I can't believe I am admitting this... I was checking the oil while the car was on a slant.... I checked it today at work while it was perfectly level and the oil was perfect a little high acctually. Whoops my bad thanks anyway guys

[GTR-N1]

"The Case Of The Disappearing Oil"

You're a magician and didn't even know it!

[stig mick]

I feel like such a retard

In my defense it wasnt that big of a slope but it was enough to cause a faulty oil reading