Recent Topics
O'Reilly High Mileage ATF
by logcar
06/24/17 05:08 PM
Is this steelie wheel repairable? Pics
by shadow7
06/24/17 04:25 PM
Accord drain and refill question
by aquariuscsm
06/24/17 03:57 PM
Trying to diagnose a front-end clunk
by mrgrim
06/24/17 03:44 PM
Sad but funny. I really feel for the guy.
by BMWTurboDzl
06/24/17 03:37 PM
UOA of Mobil 1 EP from '05 V8 4Runner.
by JDMHero47
06/24/17 03:32 PM
How to copy video files from sd card to ipad?
by Quattro Pete
06/24/17 03:29 PM
Why DIrect Injection is really bad!
by JDMHero47
06/24/17 03:26 PM
MicroGard MGL51394 @ 6980 miles
by MrQuackers
06/24/17 03:26 PM
What vehicles will an XG8A fit?
by tc1446
06/24/17 02:44 PM
2017 BMW x3 loaner experience
by L_Sludger
06/24/17 02:24 PM
Fix for tail pipe cancer?
by Oro_O
06/24/17 02:19 PM
Energy Efficiency Report from my Utility ... :-)
by LoneRanger
06/24/17 01:50 PM
Preloading suspension before torquing - a dilemma
by Klutch9
06/24/17 01:33 PM
Acdelco air filter made in China?
by njohnson
06/24/17 12:37 PM
Mercon ULV - anyone know anything?
by jaj
06/24/17 11:29 AM
2012 Race Red Ford F150 FX4
by Coprolite
06/24/17 11:29 AM
Brakes & Rotors Recommendations. Durable.
by dave munson
06/24/17 11:24 AM
Castrol Edge question
by 60ampfuse
06/24/17 11:16 AM
Tundra 5.7 Cam Chain Tensioner
by JXW
06/24/17 10:45 AM
Newest Members
Italia64, donjuers, AikiBrewer, jgb3, SpaceTitan
61951 Registered Users
Who's Online
75 registered (2002 Maxima SE, 03s, andyrocky, 55Test, aquariuscsm, 1345, 6 invisible), 2348 Guests and 29 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
61951 Members
66 Forums
266983 Topics
4415506 Posts

Max Online: 3590 @ 01/24/17 08:07 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: 8378
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: 13101
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 -- FOR SALE!!
2017 Chevrolet Corvette Grand Sport

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 Offline


Registered: 08/30/04
Posts: 19146
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, 153K, Eneos 0w20
07 Accord I4, 120K, M1 EP 0w20
10 Altima 3.5, 37k, M1 EP 5w30
92 Previa, 166k, Chevron 5w30

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


Registered: 07/23/08
Posts: 9808
Loc: New Jersey
you will get lots of bubbles
_________________________
Check To See That The Oil Jugs You Buy Have The Exact Amount Of Oil In Them And Have An Inner Seal Under The Cap. I Use Mobil 1 And Fram Ultra Filters

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


Registered: 03/03/10
Posts: 2435
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 325i BMW 183k
1999 BMW M3 98k
2x 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: 2435
Loc: Mn
What car is this exactly?
_________________________
1992 325i BMW 183k
1999 BMW M3 98k
2x Castrol 0w40/Mahle


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


Registered: 01/09/09
Posts: 1521
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 >