will an extra 3/4 quart of oil in the engine hurt anything? it's a 03 wrx. i checked my oil level on a place not perfectly level and ended up overfilling about 3/4 quart. anyone know if the oil pan has that extra room or should i drain that extra oil?

 

It's about 4.5 quarts. Overfilling by a bit seriously won't hurt, don't bother draining it.

If you can't go to sleep at night because of it, siphon the extra oil from the dipstick pipe :P

 

Originally posted by GL_WRX
will an extra 3/4 quart of oil in the engine hurt anything? it's a 03 wrx.
Capacity is 4.8 quarts. It's up to you. I'd drain it out because if the oil in the sump sloshes around and gets close enough (doesn't have to actually come in contact) to the crankshaft at high revs, it'll be whipped into a froth and some of those bubbles may be picked up by the oil pump. Air bubbles don't provide a very good oil film between bearing surfaces. This is why race cars with wet sumps use full-length scrapers and windage trays/screens to keep the oil in the sump away from the rotating mass.

I also recommend a Fumoto Oil Drain Valve and locking clip to make life simpler.

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"…axles of evil…" - george w. bush

 

ok i siphoned the extra oil out today. hope i can sleep better tonight