Recent Topics
Competitive friends drive trucks to 500k miles
by Rat407
09/28/16 01:40 PM
Mercedes 00098988 replacement for Ford PS fluid?
by 9009000
09/28/16 01:39 PM
Best High Mileage 5w-30 oil?
by dx92beater
09/28/16 12:41 PM
2008 Caddie CTS Heavy Oil Usage
by jcbcts
09/28/16 11:54 AM
Detergents
by JDMiller
09/28/16 11:50 AM
Terrier puppies
by pbm
09/28/16 11:12 AM
The joys of owning a car with 200K miles
by mclasser
09/28/16 10:53 AM
Rims/tires for my Ford pickup
by Donald
09/28/16 09:54 AM
Help Finding A541e Auxiliary Cooler Install DIY
by mphilleo
09/28/16 09:41 AM
Use Dexcool as AMAM ?
by iExcel
09/28/16 09:27 AM
T6
by stro_cruiser
09/28/16 09:00 AM
Different tire rotation question - AWD vehicle
by CBR.worm
09/28/16 08:18 AM
Newest Members
Jarhead74, spieler, Slash2CPU, Rforce, JDMiller
59205 Registered Users
Who's Online
96 registered (2015_PSD, 2009Edge, 2K2AcuraTL, 9009000, 2012AccentSE, 09_GXP, 11 invisible), 1868 Guests and 17 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
59205 Members
66 Forums
255019 Topics
4189219 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#2594842 - 04/09/12 07:48 PM Effects of engine overfill
penz08 Offline


Registered: 03/03/12
Posts: 53
Loc: new brunswick canada
What are the symptoms of an overfilled engine? Is overfiled by one quart will make my engine feel slugih?

Top
#2594849 - 04/09/12 07:55 PM Re: Effects of engine overfill [Re: penz08]
dave1251 Offline


Registered: 07/15/05
Posts: 8153
Loc: Maricopa, AZ
You have some questions today don't you? One quart you probably will not notice a thing. If you over fill you sump too much you start to have a problem of your engine seals bursting off the engine because of too much pressure but I have never seen that I just read about it.
_________________________
make the inside of your engine oil cap white.
don't use.

Top
#2594852 - 04/09/12 07:57 PM Re: Effects of engine overfill [Re: penz08]
dparm Offline


Registered: 04/19/10
Posts: 13031
Loc: Chicago, IL
Depending on the design of the oil pan you could also get frothing as the crankshaft skims the top of the oil.
_________________________
2011 BMW M3 sedan ZCP

Top
#2594854 - 04/09/12 07:58 PM Re: Effects of engine overfill [Re: penz08]
Jeffy_D Offline


Registered: 01/27/12
Posts: 305
Loc: missouri
Sluggish performance would be the least of your worries. If its overfilled and contacts the piston rods, its will cause the oil to foam , and where theres air, theres no lubrication.

Every motor is different, I wouldnt risk it. Drain it or at least get a syphon pump.


Edited by Jeffy_D (04/09/12 07:59 PM)
_________________________
10 titan 70k castrol magnatec/fram TG
12 sonic 55k AC Delco oil and filter



Top
#2594855 - 04/09/12 07:59 PM Re: Effects of engine overfill [Re: dave1251]
penz08 Offline


Registered: 03/03/12
Posts: 53
Loc: new brunswick canada
Yes I do have a lot to ask! One time my engine was shaking so much, i had new plugs oe, i think the stupid mecanic overfilled by one quart, and i think its too much for a 1.6L.

Top
#2594860 - 04/09/12 08:01 PM Re: Effects of engine overfill [Re: penz08]
Corvette Owner Offline


Registered: 01/22/03
Posts: 1676
Loc: Waldorf, Maryland
It can cause aeration of oil, which can be bad. Pull dipstick after car is running and see if you see bubbles.

What percent is one quart of full oil change?
_________________________
Vehicles:
98 Corvette
06 Murano
96 Chevy Van (Custom Conversion)
14 Chevy Impala
10 Starcraft Boat
13 Buick Enclave

Top
#2594863 - 04/09/12 08:02 PM Re: Effects of engine overfill [Re: penz08]
A1BadPizzaGuy Offline


Registered: 02/06/12
Posts: 19
Loc: FL, United States
The worst thing I've actually seen is foaming the oil. But I've poured a quart of MMO on top of an already full sump, and when I drained the oil about 500 miles later, there was no foam.

Top
#2594867 - 04/09/12 08:04 PM Re: Effects of engine overfill [Re: Corvette Owner]
penz08 Offline


Registered: 03/03/12
Posts: 53
Loc: new brunswick canada
The max is 3.3L

Top
#2594872 - 04/09/12 08:05 PM Re: Effects of engine overfill [Re: penz08]
The Critic Online   crying


Registered: 08/30/04
Posts: 18904
Loc: Walnut Creek, CA
On a 2nd gen Prius, 1/4 qt will likely result in reduced fuel economy and oil pooled in the throttle body.

Larger amounts of overfill supposedly, according to a TSB, will result in a no-start.
_________________________
11 Prius, 135k, M1 EP 0w20
07 Accord I4, 114k, M1 EP 0w20
10 Altima 3.5, 36k, M1 EP 5w30
92 Previa, 162k, Chevron 5w30

Top
#2594874 - 04/09/12 08:06 PM Re: Effects of engine overfill [Re: penz08]
crazyoildude Offline


Registered: 07/23/08
Posts: 9115
Loc: New Jersey
you will get lots of bubbles
_________________________
I Won't Use Oil Filters With Louvers.Also Not A Fan Of Oil Jugs That Don't Have A Security Inner Seal..Presently Using Fram Ultra & Mobil 1 5w20/30

Top
#2594877 - 04/09/12 08:09 PM Re: Effects of engine overfill [Re: penz08]
Lead Shoes Offline


Registered: 03/03/10
Posts: 2433
Loc: Mn
Originally Posted By: penz08
The max is 3.3L


I wouldn't worry, I've overfilled mine by a quart and just let it burn off with no ill effect or blown seals.
_________________________
1992 BMW 325i 183k
Castrol 0w40/Mahle


Top
#2594878 - 04/09/12 08:10 PM Re: Effects of engine overfill [Re: The Critic]
penz08 Offline


Registered: 03/03/12
Posts: 53
Loc: new brunswick canada
Originally Posted By: The Critic
On a 2nd gen Prius, 1/4 qt will likely result in reduced fuel economy and oil pooled in the throttle body.

Larger amounts of overfill supposedly, according to a TSB, will result in a no-start.
wow, is it that bad? My car got a 1.6L , economical on gas, is smaller engine are more sensitive to overfill?

Top
#2594883 - 04/09/12 08:13 PM Re: Effects of engine overfill [Re: penz08]
Lead Shoes Offline


Registered: 03/03/10
Posts: 2433
Loc: Mn
What car is this exactly?
_________________________
1992 BMW 325i 183k
Castrol 0w40/Mahle


Top
#2594896 - 04/09/12 08:22 PM Re: Effects of engine overfill [Re: penz08]
silverrat Online   content


Registered: 01/09/09
Posts: 1467
Loc: Ontario
I know a place that opened one drain plug on a 996 and not the other one, and then poured 10 liters of oil in it. It was smoking and leaking from a seal.
_________________________
03 Civic Si(R) - Assembled in Swindon, England
Long Live the Manual Transmission drive

Top
#2594901 - 04/09/12 08:26 PM Re: Effects of engine overfill [Re: penz08]
Gene K Offline


Registered: 01/25/03
Posts: 3558
Loc: Decatur AL USA
It depends on exact engine design. On the roadcourse 2.0L DOHC Neon routinely ran 1 Qt Low to reduce the number of spun bearings caused by aeration of oil that occurred when the crank contacted oil. On the other hand Corvette LS1's routinely ran 1 qt overfilled to reduce the chance of uncovering the pickup in High-G, High-RPM Sweepers.
_________________________
Gene

2014 Mustang GT 5.0 SC - 675 bhp
PP 10W30 / FL500S

2015 F150 4x4 2.7 EB
PSB Gold 5W30 / FL2062

2015 Enclave 3.6
GM Dexos 5W30 / PF63






Top
Page 1 of 2 1 2 >