Oil clarification

[pidj]

Got it. Thanks all!

[cas951]

You are definitely overfull which is bad for these cars. As everyone said drain some immediately before driving any further. I would take at least 1/2 quart out and check again.
You should reconsider a new mechanic as obviously he's not too familiar with this car.

Just be sure you do not do this.
Slight problem during oil change, what to do next?

[pidj]

Agreed. It's going nowhere until I drain a bit out. This oil fill was either done by the previous owner (or the specialty shop that did the 30,000 mile service). So obviously, I'm not feeling overly comfortable on this previous job - hopefully it was a careless error. I'll start with this for now ....

[Lew]

Originally Posted by cas951

You are definitely overfull which is bad for these cars. As everyone said drain some immediately before driving any further. I would take at least 1/2 quart out and check again.
You should reconsider a new mechanic as obviously he's not too familiar with this car.

Just be sure you do not do this.
Slight problem during oil change, what to do next?

I have heard that being somewhat overfull with oil is bad for these cars. How so? Anyone?

[steved0x]

Originally Posted by Lew

I have heard that being somewhat overfull with oil is bad for these cars. How so? Anyone?

When too full it becomes easier for oil to get through the AOS and into the intake where it is then burned along with the air/fuel mixture. Too much oil can cause misfires and damage the catalytic converter, and "more" too much oil can hydro-lock the cylinder and destroy the engine.

I overfilled my oil just like that before my first track day, blew a huge smoke bomb, got a flashing CEL, engine cutting out, scared me to death, when I got home I dropped the oil filter canister and installed a new filter/o-ring (buying just a new o-ring was about the same price as a new filter which comes with the o-ring). This dropped my oil right down to just below the full mark and all was good

[cas951]

Originally Posted by steved0x

When too full it becomes easier for oil to get through the AOS and into the intake where it is then burned along with the air/fuel mixture. Too much oil can cause misfires and damage the catalytic converter, and "more" too much oil can hydro-lock the cylinder and destroy the engine.

I overfilled my oil just like that before my first track day, blew a huge smoke bomb, got a flashing CEL, engine cutting out, scared me to death, when I got home I dropped the oil filter canister and installed a new filter/o-ring (buying just a new o-ring was about the same price as a new filter which comes with the o-ring). This dropped my oil right down to just below the full mark and all was good

I had the same experience here on my first oil change. I filled my oil to the full mark thinking that's where it should be. It took almost 9 qts to get it to that level. Drove it to work the next day and I noticed a big cloud of smoke when I accelerated, engine stumbled a few times and cel came on.