gasoline in engine oil

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PatSea

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OK guys, I need your help. I had a bad case of the dumbass this morning! I was checking my engine oil this morning and needed to add about a 1/2 quart to my port engine. I grabbed a quart of what I thought was engine oil. As I began to pour it slowly into the engine I immediately realized it wasn't oil. As it turned out it was gasoline. I estimate that I added no more than 6 or 7 tablespoons of gas to my oil.
These are 454 ci inboard engines. They hold sbout 6 wuarts of oil. So my question is how bad is this? Do I need to change the oil out? Or will that small amount evaporate quickly? I wouldn't think that small amount would effect the viscosity or other properties of the oil enough to be significant.
Thoughts?
 
Here are a couple varying opinions from wiki-answer;
http://wiki.answers.com/Q/How_does_one_separate_gasoline_from_motor_oil

That is a small amount of gas but it will thin the oil... a little.

How many hours have you run on the present crank oil? FWIW- Crusader recommends changing oil & filter on the newer Vortec engines at 50 hr intervals , which I just did on my engines. Most gas engines spec 100 hrs or once a year whichever comes 1st. Especially if yours is near the 75-100 or so hr mark , IMO you might as well just go ahead change out and not be concerned.

But if it only has a few hours so far , personally, even though oil and gas mix fairly well, I might let it sit for a day or so and pump out the couple quarts in hope that the lighter gasoline might separate to at least some small degree , and replace the pumped oil. And don't extend the change schedule. That is not to suggest what you should do.
I suspect most people would just do as suggested in the #3 wiki opinion. But you are the owner & will be the one thinking about this. .
 
quote:
Originally posted by Sandy

Here are a couple varying opinions from wiki-answer;
http://wiki.answers.com/Q/How_does_one_separate_gasoline_from_motor_oil

That is a small amount of gas but it will thin the oil... a little.

How many hours have you run on the present crank oil? FWIW- Crusader recommends changing oil & filter on the newer Vortec engines at 50 hr intervals , which I just did on my engines. Most gas engines spec 100 hrs or once a year whichever comes 1st. Especially if yours is near the 75-100 or so hr mark , IMO you might as well just go ahead change out and not be concerned.

But if it only has a few hours so far , personally, even though oil and gas mix fairly well, I might let it sit for a day or so and pump out the couple quarts in hope that the lighter gasoline might separate to at least some small degree , and replace the pumped oil. And don't extend the change schedule. That is not to suggest what you should do.
I suspect most people would just do as suggested in the #3 wiki opinion. But you are the owner & will be the one thinking about this. .

Click to expand...

s
It is not going to separate. Either change it all or leave it alone. If really only a few tablespoons then I would probably leave it alone.

Now, remove all gasoline from any container not labeled gasoline.

George.
 
I would sleep better if I changed it especially if it contained ethanol
 
The oil still looks good. I change the oil each fall before I store it for the winter (late October). Normally put about 50 hours on the engines each summer. I think I'll leave it alone, do nothing until I change it in October.
I learned a lesson about storing fluids (especially gasoline) in a container other than one marked GASOLINE. Ithink this was left over gas from last fall when I changed the water/fuel seperator. Won't happen again!
Thanks for all your help.
 
Better call the oil company to see what damage to the viscosity properties might have been done.

I assume there is no warranty or insurance issue involved.
 
Just change it and the filter. Then if you put less than 20 hours on it before you pull the boat, don't change it again. Problem solved and it will end up costing you no more money or time than normal.
 
I would pull out the dipstick, and smell it,,, If it's a strong odor, I'd change the oil. Otherwise, no.
 
Good Grief! How hard is an oil change? Not talking about a lot of money here, just some time for absolute peace of mind.
 
Could've changed the oil and filter in the time it took to get the first response to this question.
 
I have a Honda F12X jetski. The engine is a Honda Civic engine with a turbo. Common to all owners of this model, when we change the oil, we usually get 5 quarts out and put four quarts in. That extra quart is fuel that blew by the piston rings.
 
quote:
Originally posted by Crownline 242

I have a Honda F12X jetski. The engine is a Honda Civic engine with a turbo. Common to all owners of this model, when we change the oil, we usually get 5 quarts out and put four quarts in. That extra quart is fuel that blew by the piston rings.

Click to expand...


Wowser!

Dilution issue aside, doesn't the extra fluid volume allow aeration of the oil and loss of pressure?

Very interesting they put a turbo'd car engine in that ski.
 
Never noticed foaming, maybe because the engine uses a dry sump for oil. Interesting though is that Honda changed the recommended oil weight from 40 to 30. I keep using Rotella 15w 40
 
I've heard the Honda cylinders and rings are mismatched in hardness causing the blow by problem. Some people find it eventually seats and problem goes away. Some people never get rid of the problem. Either way, it is a rare example of poor engineering on Honda's part.
 
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