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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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do bad things happen when you overfill your oil?
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Sat, 28 December 2002 05:53
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my oil level is up past the "H" level (mine has H and L, not F and E)
it's past it by a good 0.5 - 1.0 cm (on a standard 1jz dipstick)
I want to know wehther this is gonna cause any damage, and hence if I should be bothered draining some (which is a right pain in the behind)
or if anyone has a secret way of draining a little bit of oil, would be good
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Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Sat, 28 December 2002 06:03
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Yes ive heard bad things can happen if u run your car with too much oil
so hopefully u havent been driving around like that
Someone else can fill in what exactly happens and why etc
Id be interested to know too
Ta
Mani
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Location:
cambo
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Sat, 28 December 2002 06:29
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yes 1cm overfull is bad, you should definately drain some. a little overfull is ok but i would think that you gone too much over. the sneaky way around drainging some from the sump (theres no way of doing that without getting oil over your hand when you put the plug back in as its still coming out) is to back off the oil filter. once theres a gap between the filter and the block just give the car a quick crank, not starting it but enough for it to pump some oil out. this makes a major mess down your motor but then again i only do this at work where i have degreaser and a gurney (spelling?). but yeah thats how i do it.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Sat, 28 December 2002 06:43
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aahh
well, I think I'll take the messy arm over the messy engine.
arm is easier to clean when you dont have access to a car hoist & associated industrial cleaners.
unfortunately, I have been driving around like this for ... a little while. less than a week fortunately.
once my engine cools down I'm going to go drain some.
if all else fails I'll change the oil
have some penrite and a filer sitting in the boot anyhow
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Toymods Vice President
Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Tue, 31 December 2002 04:41
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I noticed the same thing in my girl friends Echo the other night. We were driving it down to Wagga to see her family so I gave it the once over and noticed that the oil was overfull by about 15mm on the dipstick. I was a bit pissed about this since the car has 8000Km on it and has been serviced at toyota for the first three services already. I called the guy at Toyota and he tried to convince me that it's normal to put in an extra litre more than is specified for the engine, just in case. He wasn't very receptive to my point of view that an engine with 5000Km on the clock really shouldn't be using enough oil to need to be overfilled by 1 litre, or that I'm pretty sure they specify a lubricant capacity for a reason.
What I'm saying is that the thing has done 3000ish K's with a bunch too much oil in it with no ill effects yet.
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Location:
Melbourne
Registered:
May 2002
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Toymods Vice President
Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Tue, 31 December 2002 05:29
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I guess I better go with the more technical reply after my little, "When I was a lad" episode.
The reason not to overfill the oil of an engine is mostly about the oil getting above the level of the bottom of the crank when the engine is running. In this case the oil will be airated by the crank and turn to foam rather than a nice pumpable liquid, this is where the problem comes from. The level of foam gets worse and worse and eventually there is no liquid oil to pump and lubricate your bearings, and you end up spinning a bearing or several.
This is by far the more problematic symptom rather than having a bit of oil come out of the dipstick or burn some oil from it being forced up past the rings.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Tue, 31 December 2002 08:33
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after thiniking it threough, I kinda figuired that would be the big problem.
I'll chewck it again tonihgt.,., my car tends to use a bit of oil on hot days, somaybe some will have gone
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Location:
cambo
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Wed, 01 January 2003 07:11
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too high oil level causes the crank to swing into the pool of oil which isnt so good as it hits theoil rather hard.
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Location:
Victoria
Registered:
September 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 03:30
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I've seen some dumb f*** fill the oil all the way to the top of the rocker cover and the thing still ran, albeit very smokey and a lot slower than normal (and was awarded a yellow sticker by the fuzz for his stupidity). He did a 150km drive (got to the destination about half an hour after the rest of us), the oil was forced up the vaccum tube into the air filter and into the engine which blew a damn lot of smoke.
There was no damage to the engine.
The only thing I'd be worried about would be fouling your plugs and blowing smoke.
You're not gonna get any damage to your engine filling as much as you have, but you may notice a drop in performance.
P.S.
Joshstix said;
"the oil will be airated by the crank and turn to foam"
What type of oil foams up?
The oil that you can buy for $4 for 10 Litres is not supposed to be put in engines (check the label) i think its just for your tyres...
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 03:52
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well, it's mobil 1, so you'd hope it was of decent quality 
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Location:
Victoria
Registered:
September 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 04:25
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Your oil won't foam up unless it has something else in it...
Like dishwashing liquid.
You should be fine.
And if anyone has ever seen it happen can you tell us and post some pics...
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Toymods Vice President
Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 05:04
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Oil does faom I don't care what you believe.
If oil didn't foam why would all manufacturers of engine oil add foam inhibitor additives to their oil? While they do have foam inhibitors all oil is designed to work in a certain environment and that includes how much the crank thrashes the oil.
If you don't believe me about the foam inhibitor here's a few quotes from around the place that took a good 3 minutes to find, as I'd rather be well informed rather than take the piss out of people who are here to share a little knowledge.
• Foam inhibitors: The crankshaft whipping through the oil in the pan causes foaming. Oil foam is not as effective a lubricant as a full-liquid stream, so the inhibitors are used to cause the foam bubbles to collapse.
From http://popularmechanics.com/automotive/auto_techno logy/2002/8/motor_oil/index4.phtml
And some problems from foamed oil
pump cavitation,
spongy, erratic operation of hydraulics,
loss of precision control; vibrations,
oil oxidation,
component wear due to reduced lubricant viscosity,
equipment shut down when low oil pressure switches trip,
micro-dieseling due to the ignition of the bubble sheath at the high temperatures generated by compressed air bubbles,
safety problems in turbines if overspeed devices do not react quickly enough and
loss of head in centrifugal pumps.
from http://www.practicingoilanalysis.com/article_detai l.asp?articleid=255&relatedbookgroup=Hydraulic s
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Location:
Sydney
Registered:
October 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 05:25
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A funny story related to this.
I went to school with dude who was a notorious tight arse.
He had bought his own car (some old shit box) and did the old self servicing (to save money).
There was some shitty oil on special at bigw, so he bought three 5 litre bottles of it, to save money.
He filled his car up with oil right to the top!, I mean right to the top of the rocker cover. He would have put atleast 10 or litres in it?
As you would imagine the thing ceased on him a mere 100km later, how it got that far I dont know? He had to pay about a $1000 for a new motor.
Moral to the story, dont over fill your oil and DONT BE A TIGHT ARSE.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Location:
Victoria
Registered:
September 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 06:19
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I'm just saying that oil won't foam up, it's nothing personal...
And like you said it doesn't foam because it's got those anti-foam hooby joobs in it. They've had that since, well.. sythetic oil...
That's why I'm saying not to worry about it unless you're using cheap ass oil.
You're crank is always splashing that oil around, too. Foaming isn't going to occur just because you're overfilling it.
If you're crank wasn't splashing oil around ( eg. oil level under that E or L on your dipstick) you'd score your bores or sieze your engine because the oil wouldn't be splashing up the cylinders.
P.S. I'm not taking the piss out of anyone... Just trying to make sure there's no confusion.
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Location:
Victoria
Registered:
September 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 22:34
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Ok I was wrong... I'm suprised no-one's steered me straight yet.
Only older engines splashed the oil around with the crank.
The newer (or anything post 60's) will most likely have a oil pickup that pumps the oil to the top of the engine.
As the oil works it's way back down it lubricates the engine.
But to get to the point... one cm won't damage your engine.
You may notice a difference in performance... but it's a street car right??
And if you want to worry about that bit of oil.
The easiest way is the drain the lot through the sump plug and put it back in again.
The only other way to do it would be to get a small peice of tubing and an electric fuel/oil pump and pump it out...
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I supported Toymods
Location:
Berowra-Sydney
Registered:
July 2002
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Re: do bad things happen when you overfill your oil?
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Thu, 02 January 2003 23:58
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1st of all 1cm overfill wouldn't make any difference unless your going to be thrashing the car around in high revs constantly,
2nd, oil does foam i've seen it myself but the oil that tends to foam up is older used oil which i gather is due to it having a vast amount of impuritys in it such as fuel, carbon ect,
and an easy way of getting a bit of oil out is to remove the oil preassure sensor, place a bucket under the hole or if you have a piece of plastic tubing that will fit in the hole nicly stick that in then run it to a bucket, disconnect ignition leads and crank the engine and watch the oil pump out,
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I supported Toymods
Location:
Toodyay, WA
Registered:
July 2002
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Re: do bad things happen when you overfill your oil?
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Fri, 03 January 2003 00:08
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WHAT THE HELL??
What happend to your RA23 Ginsie??
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I supported Toymods
Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Fri, 03 January 2003 02:32
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it's bad coz it's excess weight 
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Location:
Southern Sydney
Registered:
August 2002
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Re: do bad things happen when you overfill your oil?
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Fri, 03 January 2003 02:39
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100g's of oil could pose a problem in an underpowered 4 banga.... haha
just jokes
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I supported Toymods
Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Fri, 03 January 2003 03:03
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SO true, remember to empty your ashtrays before you drag someone off at the lights.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Fri, 03 January 2003 04:37
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well, that may be a problem with a ford Ka, but the 1jz isn't too worried by that.
although you do notice it with 4 people in the car... bit more sluggish, plus the suspension is a LOT harder
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Location:
cambo
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Sun, 05 January 2003 11:06
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i could write a bit on this subject but ill try to keep it short. with todays motors precision is everything. now this may be a little over the top with the oil level in your car but modern engines are so tempremental the slightest thing can ruin them. secondly ive watched a couple of videos on oil in tafe (not by choice) and ive learned a few things. oil is designed to clean, lubricate, quieten, cool etc... your engine. there are MANY additives and one of them is a DETERGANT. detergant foams this is why an anti foaming agent is added. if people can wait another month till tafe starts again ill ask my teacher about it and ill come back with hundreds of stories of why not to overfill your oil 
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Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Sun, 05 January 2003 11:45
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| Julz wrote on Fri, 03 January 2003 14:03 |
SO true, remember to empty your ashtrays before you drag someone off at the lights.
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haha
not only do u go through rubbish bins but u want whats in ppls ashtrays too ???
(Julian this will never end)
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Sun, 05 January 2003 12:14
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 hahaha..i actually had my first experience with this subject today..
i pulled into the sevo with my trusty sherpa (545cc of raw power!!!!!) to fill up the fuel, there was a black 180sx there with a mild bodykit..
while i was filling up, the dude came out and started his car to move of. wow!!! there was smoke everywhere, the servo guy's came running out cause they though it had caught fire or something
so he moved it over to a parking bay and turned it off. now i was there thinking 'this guy has serious turbo seal problems'...
so after i paid for my fuel, i walked over to where the guy was parked, he was just sitting in his car, obviously confused.
i asked him 'if his turbo seals where gone', he wasnt sure, he said 'it had only started doing it, he had washed his car, topped up the oil and radiator'....
i was like mmmmmmmm.... so got him to pull the bonnet, i had a looksee, it was a ca18det, i asked him 'how much oil he put in', he said '3 litres', so i said 'how low was it?' he rekoned it was 'low'...
so i check the oil and it was about 5cm up the dipstick over the full mark... 'holy shit' i thought and said the same to him...
i pulled the oil breather hose off the cam cover, it was wet with oil, i told him 'he really needs to drain his oil to the correct level', and explained what was going on....he said 'ok'
and off he went home smokey style....
yeah, so that is my first experience with to much oil...
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I supported Toymods
Location:
Sydney
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Sun, 05 January 2003 14:23
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| Quote: |
haha
not only do u go through rubbish bins but u want whats in ppls ashtrays too ???
(Julian this will never end)
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That's alright, it's your private joke not mine.
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Banned by his request
Location:
moved to tamworth
Registered:
July 2002
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Re: do bad things happen when you overfill your oil?
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Sun, 05 January 2003 22:52
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the oil air-rates from being beaten by the cranks counter balancers and leaves less oil to pump through the system. but the biggest danger is that the oil can wrap itself around the crank and bend it or even crack it{eg like,honey on a spoon!}. just drop the exess out the sump plug or do an early filter change.
mick
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Location:
GoldCoast/Brisbane
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Mon, 06 January 2003 01:39
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I thought that appart from the already mentioned effects of overfilling oil, that overfilling causes pressures inside the engine to skyrocket, eventually resulting in seals being broken or blown causing the engine to piss out oil and the obvious need of a rebuild!
Is this correct or should I kick my uncles ass for giving me false info??
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Location:
cambo
Registered:
May 2002
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Re: do bad things happen when you overfill your oil?
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Mon, 06 January 2003 06:32
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you are correct higher pressure can occur.
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