Did I overfill my oil?

[zkay]

Hello

I recently made a thread in the Fuel Economy subforum titled, "Mobil1 Advanced Fuel Economy 0W-20". In short, I was asking opinions about that brand of oil. I wound up using the same brand, but in 0W-30, with a wix filter #51394.

My question here is, the jug I bought was marked 5 quarts. I looked up the manual for my yaris online, and it said that 3.9 quarts was the correct amount to fill with a new filter. I just filled it to slightly above the last quart line on the bottle, let it sit a few minutes, then drove it a few miles to check the oil.

I checked the oil and there is a small amount of oil all the way above the top fill marker. This is after wiping the dipstick off and trying to take another reading.

The way the oil looks on the dipstick, there is a solid line of oil all the way across and up the dipstick until about 3/4 of the way between the full and low marks, and then the line of oil shrinks to about half it's size and continues to run up the dipstick past the full mark. I don't know how this can be, seeing as I put in what was asked for.

I did a search here, and came up with the following quote,

Over and over, I have found that it is not enough to just wipe the dipstick... somehow oil gets farther up the dipstick than the true indication--I think it picks up oil from the dipstick tube as it's inserted and withdrawn. I find that unless the dipstick has been sitting in the engine for awhile (with the engine off of course), it's very hard to tell where the actual level is just by wiping off the dipstick and inserting/removing the dipstick to take the reading. (Especially with fresh oil; when the oil gets darker, it's quite a bit easier to tell.)

I have found the easiest way for me to get an accurate reading is to check in the morning, and to just pull out the dipstick and take the reading. No wiping necessary, and no false indication of a higher level. Also, one side of the dipstick always seems easier to read than the other--don't ask me why.

And to those who say the correct fill is 3.5 quarts, maybe you aren't changing your filter at the same time? Or maybe you did, but didn't re-check the level after running the engine and filling up the dry filter? or maybe you didn't get a good reading due to not waiting long enough after replacing the dipstick, like I was saying above?

I have confirmed at least 5 or 6 times now that 3.9 quarts is correct. There's no way I can figure out that 3.5 quarts would be enough oil for a full fill (assuming a complete drain and a new filter, and an accurate level reading).

AR

So, am I not alone in this? Did I overfill my oil?

I can take pictures and upload them, if it helps.

Thanks,

-zkay