[Shotimes] Burning through oil like crazy

[Donald Mallinson]

If the car was leaking that much, it would leave HUGE 
puddles under the car at night and the entire underside 
would be coated with oil.  If it was leaking that much and 
hitting the cat converter, you would be killing mosquito's 
within a 10 mile radius with your smoke plume.  Since you 
don't mention any smoke, it is going through your engine and 
the cat converters(for a while at least) are eating up the 
smoke.

SHO V6's are famous for sometimes (not all the time) having 
the valve guides and then the seals go bad.  The oil goes 
right into the combustion chamber and out the tailpipe.

Try this test:

run the car down a highway at 50-60 mph for a few miles in 
high gear.  Then drop down to third so you are at about 4000 
rpm and floor it....watch your rear view mirror.  You 
normally would see a small greyish puff, but in your case 
you will see a somewhat large cloud of bluish smoke.

My son's '89 used a quart in 100 (maybe 75) miles, and if 
you didn't watch close upon doing this test you could miss 
the puff.  He ran it at Mid-Ohio and after the first puff 
(cleans out the combustion chamber and cat converters) the 
car never made any noticable smoke, the cats do a superb job 
of masking oil burning.

Nope, it isn't leaking, THAT you would never miss!

Don Mallinson

Eric Keller wrote:
> My '90 stock 3.0 mtx with 136000 miles is going
> through oil like there's no tomorrow.  I _may_ have
> put 50 miles on the last quart.  It doesn't smoke out
> the tailpipe.  There has always been some external
> leakage, but I've been replacing seals and I don't
> really see where the oil is coming out.  In fact, I
> used to get a certain amount of smoke at stoplights,
> and now I can smell oil, but considerably lower
> amounts.  Maybe it's just missing the cats.
> 
> I'm a little stumped as to what to do next.  Any
> ideas?
> Eric
> 
> 
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