Oil consumption problem....

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Jul 5, 2018 | 04:49 AM

Theodor

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1st Gear

Joined: Jun 2018

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Oil consumption problem....

Hello, I have a justa ( base r56 120 hp) with 60.000 miles.
My mini burn about 550ml/1000miles.
I did a compression test and I see 200psi at all cylinders!!!! I think it’s too much. (No head job in the past)
My mechanic check the timing and he said that is ok!
We also check the pcv valve and is ok.
I have no leaks! No engine light!
If I have a long idle, I can see smoke from exhaust.
Motul 8100 xcess 5w-40
Im wondering where is the problem?

Jul 5, 2018 | 11:11 PM

Theodor

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1st Gear

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Anybody?

Jul 6, 2018 | 03:16 AM

cristo

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Joined: Apr 2003

Posts: 4,098

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From: York, Pennsylvania

1 liter every 1800 miles is not too bad and many do that, but if there is blue smoke from
the exhaust after a long idle, perhaps some oil is getting by a valve guide seal.
Still, probably not a big deal at this point.

Jul 6, 2018 | 03:18 AM

mustangcruise

1st Gear

Joined: Oct 2016

Posts: 36

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Have you tried a leak down test? I had a terrible oil consumption problem and found out the rings were bad. Like yours, no CEL, no leaks, and no timing issue.

Jul 6, 2018 | 03:44 AM

Theodor

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Joined: Jun 2018

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@cristo, I don’t think its valve guides seals because at the morning after all night, when I start the engine there isn’t any smoke from exhaust.
@mustangcruise I tried a second compression test, with hot engine and I found the compression is 160psi. So the problem is rings, probably and something else.
The first compression was wrong, probably from oil into the cylinders.