terrys wrote:
> My son's 155,000 mile 93 SI has gradually been using more & more
> antifreeze. It recently went through a quart in 600 miles. I have
> thouroughly inspected for leaks and can find none. Water pump is fairly
> new and no leak at the weep hole. No sign of antifreeze in oil, no foam in
> valve cover. No sign of antifreeze in the transmission fluid. No smoke or
> steam from exhaust. No antifreeze smell inside the car like a heater core
> leak.
>
> The only thing I see is a very slight greenish tinge on all 4 spark plug
> ground electrodes. Is there a gasket some where or a known problem where
> antifreeze could be getting drawn in through the intake tract? The car is
> in great shape. I need to get this figured out before it gets worse.
>
concur with tegger. if you're sure there's no other leaks, it's head
gasket. in addition to tegger's advice, check for bubbling in the
expansion reservoir after the motor's at full working temp. watch it
for a while to be sure.