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YACT: overfill engine oil

O

Omegachi

Diamond Member
i changed the oil in my corolla the other day and accidentally overfill the engine oil. The dip stick indicates about an inch of oil above the maximum fill mark. Is this going to be a problem? should i let some oil go?
 
An inch can mean a little or a lot depending on the stick/car. How long is the measuring part of the stick (range where its supposed to be in)? If an inch is relatively small, no worries. If its a lot, drain a bit....though honestly how much did you overfill it by? Did you not drain it fully to being with or put an extra quart in? If its just 1 quart over...likely fine though with a Corolla's smaller size, margin of error before it does stuff like get place it isn't supposed to increases...

Nevertheless, likely just fine. Just keep an eye out for loss of power, blue smoke from tail pipe, etc.
 
just did some research. what i did might cause over pressure to the engine due to heat expansion of the oil. so, i think i am going to remove some oil tomorrow by draining it by removing the filter. unless i could get a small tube from a hardware store and somehow siphon some out.
 
Depends

If there is to much oil, it can turn frothy if it gets into the wrong part of the engine
 
Originally posted by: Omegachi
just did some research. what i did might cause over pressure to the engine due to heat expansion of the oil. so, i think i am going to remove some oil tomorrow by draining it by removing the filter. unless i could get a small tube from a hardware store and somehow siphon some out.
Click to expand...

Not really from heat expansion, more likely you'll have problems from the crankshaft whipping the oil into a froth. There are suction tools that you can stick down the dipstick to remove excess oil, but I can't recall any names off the top of my head.

ZV
 
I accidentally murdered a Civic engine a long time ago with a massive overload of oil. Someone else had already put 4 quarts in, and that's what it took to take it from empty after the oil drained to get back to normal level. I didn't know my buddy had already put oil in, so I added 4 more lol. Capped it, drove it off, and it died a horrible death shortly afterwards.
 
Originally posted by: Zenmervolt
Originally posted by: Omegachi
just did some research. what i did might cause over pressure to the engine due to heat expansion of the oil. so, i think i am going to remove some oil tomorrow by draining it by removing the filter. unless i could get a small tube from a hardware store and somehow siphon some out.
Click to expand...

Not really from heat expansion, more likely you'll have problems from the crankshaft whipping the oil into a froth. There are suction tools that you can stick down the dipstick to remove excess oil, but I can't recall any names off the top of my head.

ZV
Click to expand...

could he just get a really large turkey baster? that's what my brother and i used to suck out brake fluid.
 
Originally posted by: Fenixgoon
Originally posted by: Zenmervolt
Originally posted by: Omegachi
just did some research. what i did might cause over pressure to the engine due to heat expansion of the oil. so, i think i am going to remove some oil tomorrow by draining it by removing the filter. unless i could get a small tube from a hardware store and somehow siphon some out.
Click to expand...

Not really from heat expansion, more likely you'll have problems from the crankshaft whipping the oil into a froth. There are suction tools that you can stick down the dipstick to remove excess oil, but I can't recall any names off the top of my head.

ZV
Click to expand...

could he just get a really large turkey baster? that's what my brother and i used to suck out brake fluid.
Click to expand...

i doubt it would work, he'd have to attach a hose to reach the oil pan and and may not be able to draw enough oil to be effective.
 
Originally posted by: dawp
Originally posted by: Fenixgoon
Originally posted by: Zenmervolt
Originally posted by: Omegachi
just did some research. what i did might cause over pressure to the engine due to heat expansion of the oil. so, i think i am going to remove some oil tomorrow by draining it by removing the filter. unless i could get a small tube from a hardware store and somehow siphon some out.
Click to expand...

Not really from heat expansion, more likely you'll have problems from the crankshaft whipping the oil into a froth. There are suction tools that you can stick down the dipstick to remove excess oil, but I can't recall any names off the top of my head.

ZV
Click to expand...

could he just get a really large turkey baster? that's what my brother and i used to suck out brake fluid.
Click to expand...

i doubt it would work, he'd have to attach a hose to reach the oil pan and and may not be able to draw enough oil to be effective.
Click to expand...


Just get a bucket, and use the drain plug. It's not hard to put the plug back in mid-flow.
 
I bought a little hand siphon from Menard's for something like eight-nine cents that might work. Dunno if it would have quite enough suction or not. I used it to empty a gas tank so I could remove it.
 
If it's too high the crank will churn the oil into a foam, and foam doesn't pump well, thus extra oil = oil starvation, as ironic as that is.
 
Originally posted by: exdeath
If it's too high the crank will churn the oil into a foam, and foam doesn't pump well, thus extra oil = oil starvation, as ironic as that is.
Click to expand...

A friend of mine once over filled a Geo Metro so badly that it actually forced oil into the combustion chambers (at least, that's why we think the chambers, valves and plugs were all oil residue fouled). I think he had 2 quarts extra, and the Geo 3 cylinder only takes 3 or 4 quarts.
 
hey guys... i haven't removed the oil yet, i need to find a time when i am not busy to do it. but lately, ive been noticing a decrease in power during acceleration..... should i be concerned?
 
Originally posted by: Omegachi
hey guys... i haven't removed the oil yet, i need to find a time when i am not busy to do it. but lately, ive been noticing a decrease in power during acceleration..... should i be concerned?
Click to expand...

yes
 
Originally posted by: iamwiz82
You are driving it? Oh christ...
Click to expand...

Haha... with the warnings here, you shouldn't be driving it. Taking out a rental car is cheaper compared to the cost of repair.
 
Originally posted by: Omegachi
hey guys... i haven't removed the oil yet, i need to find a time when i am not busy to do it. but lately, ive been noticing a decrease in power during acceleration..... should i be concerned?
Click to expand...

Thats the resistance from the crank sloshing through the oil and/or excess friction and expansion due to lack of lubrication and cooling caused by cavitating your oil pump with whipped oil...

Or who knows it could be something completely unrelated.
 
Did you measure after running it for a short time? (a minute) Often it'll read high until a quart is pumped into the new filter.
 
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