Too much engine oil?

[BoomerD]

Originally posted by: Number1
What kind of damages do you get when you put to much oil in the engine?

http://cars.cartalk.com/content/advice/oilchanges.html
"A word of caution: Be careful not to overfill your car's crankcase with oil. If you put in too much oil, the engine's crankshaft can actually come in contact with the oil. And because the crankshaft is turning at several thousand revolutions per minute, it can quickly whip your oil into a froth ? like the steamed milk that sits on the top of a cappuccino. Why is that bad? Well, the oil pump can't pump froth very well, and as a result, it can't get oil to the parts of the engine that need lubrication. The result ... a hefty boat payment to your mechanic."

 

[Number1]

Originally posted by: BoomerD

Originally posted by: Number1
What kind of damages do you get when you put to much oil in the engine?

http://cars.cartalk.com/content/advice/oilchanges.html
"A word of caution: Be careful not to overfill your car's crankcase with oil. If you put in too much oil, the engine's crankshaft can actually come in contact with the oil. And because the crankshaft is turning at several thousand revolutions per minute, it can quickly whip your oil into a froth ? like the steamed milk that sits on the top of a cappuccino. Why is that bad? Well, the oil pump can't pump froth very well, and as a result, it can't get oil to the parts of the engine that need lubrication. The result ... a hefty boat payment to your mechanic."

Thanks, I always wondered about that.

 

[skyking]

another consequence is a whole lot of backside oil on the bottom of the piston. Overfilling aircraft engines, for example, will increase consumption and crankcase pressures, and tend to overload the blowby system.

 

[FoBoT]

you are supposed to put a bit less than needed, then run it a minute, then let it sit a few minutes, then check it and then add up to the full mark

you don't just put in X amount after an oil change

 

[fitzov]

Originally posted by: BoomerD

Originally posted by: Number1
What kind of damages do you get when you put to much oil in the engine?

http://cars.cartalk.com/content/advice/oilchanges.html
"A word of caution: Be careful not to overfill your car's crankcase with oil. If you put in too much oil, the engine's crankshaft can actually come in contact with the oil. And because the crankshaft is turning at several thousand revolutions per minute, it can quickly whip your oil into a froth ? like the steamed milk that sits on the top of a cappuccino. Why is that bad? Well, the oil pump can't pump froth very well, and as a result, it can't get oil to the parts of the engine that need lubrication. The result ... a hefty boat payment to your mechanic."

interesting. I had thought it was due to increased oil pressure blowing seals/gaskets or something.

 

[Eli]

Originally posted by: fitzov

Originally posted by: BoomerD

Originally posted by: Number1
What kind of damages do you get when you put to much oil in the engine?

http://cars.cartalk.com/content/advice/oilchanges.html
"A word of caution: Be careful not to overfill your car's crankcase with oil. If you put in too much oil, the engine's crankshaft can actually come in contact with the oil. And because the crankshaft is turning at several thousand revolutions per minute, it can quickly whip your oil into a froth ? like the steamed milk that sits on the top of a cappuccino. Why is that bad? Well, the oil pump can't pump froth very well, and as a result, it can't get oil to the parts of the engine that need lubrication. The result ... a hefty boat payment to your mechanic."

interesting. I had thought it was due to increased oil pressure blowing seals/gaskets or something.

That is the main reason you don't want to overfill, not because of oil foamage.

 

[BoomerD]

Your oil pump is only going to put out a set amount of pressure. Overfilling the crankcase doesn't change that.