Drained 7.5L out of my engine oil pan. Help!

If you have a 6 cyl - your engine uses either 4.8 qts with filter or 5.5 qts with filter. I believe 4x4 and PreRunner use 5.5 qts.

Transmission pan would not drain 7.5 liters(almost 8 qts) of fluid.

You're in a cold place, so this might not be practical, but I'd try this.

Get an OEM filter and whatever amt. of oil your engine uses. Warm it up really good; then drain the oil and replace filter. Add in necessary amt. of oil.

Now drive the car for a couple of days; then drain it again - changing filter as well. How much drains out the 2nd time?

 

if i may add some light to the transmission fluid discussion. it would be possible for the transmission fluid to have been drained (~3.2 qts) then a new 5.2 qts of oil added in on top of the old oil. thus making the next oil change seem as if there were an excessive amount of oil being drained, because there would be. from my understanding, with the TC and all the coolant lines, our transmissions and all its parts hold about 18 qts of fluid, and while running it roughly 17.7% low on fluid would most likely cause some weird shifting, it may have gotten blown off by said hypothetical owner by cold weather and such (also the truck would most likely run weird with ~10 qts of oil in the crank case). not saying that this is what happend, only justifying the ATF theory.

 

well there would be 2 filters worth of oil missing too which i would assume to be close to a have qt, and 10qts=~9.4L so u would be sitting at just under 9L after u account for the filters, and over the corse of 2 oil changes i think that ~1.5 qts low (3/4qt per change) falls into an acceptable rate of consumption. +- how level the ground/truck was when oil was drained. this is all hypothetical of corse.

 

I'm going to go on the theory that the OP original calculations on how much fluid was actually drained were incorrect.

OP, can you share some light as to how you know for sure you drained 7.5L of oil out?

 

I'm going with the transmission fluid thing or you just f'd up when you filled it last and put too much in. If you pulled the transmission fluid drain plug by accident, then refilled the engine oil like you normally would, you wouldn't notice anything when you did pull the correct drain plug because it would be 100% engine oil. It could look weird because, with that much fluid, the crank would just churn it up and I would bet a lot would go through your PCV and into your intake.

Have you checked your ATF levels properly? It's not as simple as just pulling the fill plug, there's a process to verify you have the correct ATF levels in your transmission. Your truck wouldn't magically create 3 liters of oil, if it was fuel, you'd smell it and if it's water, the oil would have the consistancy and look of chocolate milk (should be low on coolant also if it's a head gasket leak).

 

OK to set things straight when I do oil changes I always put 5.2litres in which brings me to the full mark on the dipstick and thats with a filter change using 5w30. After the 1st episode I had every time i did an oil change I physically measured it in a container. This last incident I physically measured it again in a container and was 7.5L. I knew their was something wrong by how much was in the drain pan and how thin it was. Transmission oil is fine

 

I'm not sold on the tranny fluid...
From the way the OP is talking it sounds like he does all of his own oil changes... So I feel confident that he has the oil drain plug and its location figured out by now. It's not like you'd just try a different drain plug every oil change to switch things up and keep it interesting. Also, call me nuts, but I for one would never confuse tranny fluid and oil when I saw them in a pan or smelled them, ever... I'm sure I'm not alone there. Two totally different animals; colour and smell is all you need.

Unless the OP is senile and/or nose deaf, cross atf off the list.

 

You would have no problem smelling 2 qts of gasoline in with 5 qts of oil. In order to get that much gas in the sump it would be running pretty badly even in 5000 miles and most would evaporate off. I suggest you try it again next change and see what you get. Some oil comes in 4 qt jugs some in 5 qt jugs that could explain at least a quart.

 

Any update to this?

 

So I rechecked my oil today drove 190 miles drained the oil out and measured it. Oil is up 0.5L or .53quarts. Definately something wrong.

 

Did you have a sample of it tested yet?

 

So you recently drained oil, changed filter and refilled with 5.5qts(approx.) and after 190 miles of driving you have drained oil again and there were 6 qts(approx.) in the pan?

 

if you have a bad injector it will be gas in the oil and the oil will be alot thinner when drained and will be a few quarts over full.

this happened on my dads diesel a month ago and it had a cracked injector

 

Hecto, that top video is hilarious.

 

How would a bad injector cause gas in the oil. Also tested my fuel mileage and getting 14.8 mpg us or 17.3 (Canadian gallon). Thats in around 1 Degree Fahrenheit weather.
Going to send a sample in. Also Local garage is putting a special request to other tecs, used when they cant solve a problem themselves.

 

If an injector is stuck open, it will basically be dumping fuel into the cylinder, which will seep past the piston & rings and contaminate the oil. But to dump the amount you are talking about - I would think that much gas dilution in the oil would have toasted the rings and bearings in no time ...

I've had a float stick on the carb on a mower a time or two - filled the crankcase full of fuel. Not a happy moment.

 

subbing for resolution

 

Oil sample showed 11% fuel dilution. Decided to switch gas and problem solved. With my business i get bulk fuel and truck reacted funny to it.