Hello,

Ever since my last oil change, I have been losing oil like 1 qt every 1.5-2k miles. Before, it was always .5 qt or less every 5k miles. The only thing that I did recently was run the seafoam treatment. Anyway, I looked for the tell-tale signs of oil consumption, but couldn't find anything:

exhaust soot is dry
no smoking out the exhaust
spark plugs look ok (tan color)
no coolant in oil
no oil in coolant (I saw some brownish deposits, but otherwise the coolant looked green and not yellow)
no leaks seen near valve cover, distributor, etc
no leaks seen under car, filter seems dry

So what could it be?

97 gsr, 68k miles

 

compression test with 6 cranks shows:
200 200 200 215 where the high cylinder is next to the distributor

 

my suggestion is double check for leaks because is Compression is fine...then its not burning it dude...especially since you see no smoke anywhere did all the other checks

 

I read somewhere that the upper ring can be ok and thus compression checks out fine, but a lower ring can be bust and cause oil consumption. But I'll get the car up on jackstands and check for leaks again.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beanbag &raquo;</TD></TR><TR><TD CLASS="quote">I read somewhere that the upper ring can be ok and thus compression checks out fine, but a lower ring can be bust and cause oil consumption. But I'll get the car up on jackstands and check for leaks again.</TD></TR></TABLE>

Yeah, but you would see the tell-tale signs of oil burning. The first big sign is any sort of blackish buildup on the back bumper.

Get on the highway and step on it. Look in the rear view mirror for any smoke. If you see any, there is your problem: Bad rings.

 

thats strange... if it aint leakin, your compression is good, and there are no signs of black exhaust on your rear bumper then maybe it could blowby youre gettin... but it would consume that much oil.