5.0 liter v8 NA engine ran with 16 quarts of oil for 30 miles

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SilverPanzerV8

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Hi everyone, new poster here! Your thoughts, advice and recommendations are requested please.

I have a normally aspirated SL500. the R230-chassis (M113 5.0 L V-8) with 69,000 miles. Not a turbo, and not supercharged. She's my baby, I totally pamper her and take great care of her!

So yesterday, my tech added 8 quarts of Liqui Moly full synthetic to my engine without draining the old oil.

This is double the normal capacity. I then drove it for 30 miles, keeping the RPM's under 2k the whole time.

It blew blue smoke and ran really rough, I only realized what had happened after the dashboard lights lit up red and alerted me. The check engine light came on. I then drove it back to him and he did a full drain and fill with a new fleece filter, explaining that he forgot to open the drain valve and that it was my fault for distracting him by talking to him when he was doing the oil change.

What's the impact or damage? What is the recommended course of action now? All codes have cleared and there are no errors or lights at this point. TIA!
 
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You said your tech, I hope he's not at your tech anymore
I try to understand some people could make a mistake but it should have been caught when you checked the level before you're driving it.
I start mine and run it for a minute. Thirty seconds to a minute, shut it off and checked the level after every old change
 
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He's a MB master tech, and the only person to touch the car other than myself since 2012. I'll give him a pass this time, but yeah, he's brilliant but crazy, like an Einstein type of personality, absentminded.
 
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I’ve got the same model car - but with the M275 V-12 engine - great car. The engines on these are quite durable. Hard to kill. This didn’t hurt it - but lesson learned about checking the level after a change (and after each fill up in my case) - easy enough with the dashboard system.
 
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Stop talking to him while he's working on your car. LOL. In all seriousness, some people multitask better than others. I'm very poor at multitasking. If someone starts talking to me while I'm in the middle of a job, I literally have to stop working until they're done. Either that, or ignore them and get them upset at me. Or flat out tell them, "I'm in the middle of something that requires all of my concentration. Can we have this conversation later?"
 
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I'm stuck on the idea that an engine can run with 8 extra quarts of oil. My old BMW took 8 quarts as well.

Nevertheless, here are some previous threads on this topic, some of them from new users like yourself. Perhaps one of them may be of assistance:

C

Thread 'Overfilled engine oil. How much is to much?'

Okay I travel travel with my job and today I got service out of town at Ford dealership I've never been to.
Mad as a hornet!
First thing is first. My vehicle specs 5W-20 oil as an alternative I can use 0W-20 oil. I requested to the dealership that I wanted 0W-20 full synthetic. No problem. They didn't have it in bulk so they charged me for 5 individual quarts.
The mechanic put all five quarts in the vehicle It's a small EcoBoost engine in only holds 4.3 quarts 4.5 with filter change. I'm only saying I assume we put all five quarts in because it is significantly over the full mark.
what...
  • Wow
  • Sad
M

Thread 'Oil over fill. How bad is this?'

I put a bit too much oil in during my last top up. What bad effects can this have?
B

Thread 'Dangers of Overfilling'

Had my oil changed yesterday at Wal-Mart. Can these guys do anything right? Despite clear instructions that it should hold 5.5 quarts this jerkoff put in a little over 6 quarts. I'm guessing he put in about .75/quart too much. It is clearly well over the fill line on my dipstick. It pretty much covers the directions to not overfill that are stamped into the dipstick.

Could this cause any serious problems?

****it!!!!
C

Thread 'General Question About Crankcase Overfill'

If the crankcase is over-filled, will this get more oil past the rings and expose the CAT to more oil?

I am not talking about gross over-fills, just about a half liter or so.
M

Thread 'When is Overfilled Really Overfilled?'

Something I've wondered...

Even though the oil level at rest may be high from an overfill or just putting in all four quart bottles when the books says use 3.9 or 3.7 quarts, at startup the oil level will drop when the oil galleys in the engine refill. Wouldn't that negate much of the percieved problem?

Obviously, there comes a point of it doing damage...but when has anyone seen any real damage come from a little more oil than offically called for.
H

Thread 'Oil quick change place overfilled my engine'

I'm sorry if this has been answered before.

I have a 2005 Honda Civic LX with manual transmission that had an oil change recently. A week and 400 miles later, I was looking under the hood and noticed oil all over the front of the engine. I checked the dipstick and it was WAY over on oil. I took it straight to (a different) mechanic. He later confirmed that the oil was over by about 1 & 1/2 quarts. He said it was leaking oil everywhere. Valve cover, etc. I think he mentioned the EGR valve needed to be replaced. Anyway, what sort of damage can I expect? What will most likely need to be...
C

Thread 'Shop overfilled the oil in my car'

Hey everyone i noticed when i got home from getting the oil changed few hours later i went to check the oil and it was past the full mark is this ok or should i drain some out? Its about an inch past the full mark.

Its a 1995 buick century 3.1 v6.
S

Thread 'What oil overfilling can do to an engine?'

I accidently overfilled the engine with oil by 3/4 quart (the engine normally takes in 3.9 quarts). After driving for 4000 miles I did a complete drain of oil, and noticed more metal particles than usual plus few metal flakes.

I wonder if their presence has to do with oil overfilling. What kind of engine damages can oil overfilling produce?
T

Thread 'crankcase overfill-engine damage ?'

On my 94 Merc Sable 3.8L, I accidently
overfilled the crankcase. Dipstick is about
3/8 inch above the full mark.The crosshatch
area itself is about 3/4 inch long on the stick.
I could swear I added 4.5 qts when new filter
and oil was replaced but since I was filling from partially filled gallon containers I may have added more oil than needed. Should I drain some
out or would a slight overfill matter. Might be
1/4 to 1/2 QT overfilled. Thanks
P

Thread 'Effects of engine overfill'

What are the symptoms of an overfilled engine? Is overfiled by one quart will make my engine feel slugih?
J

Thread 'Dreaded Overfill Question?'

I just picked up a new Tiger 900. Rode it 60 miles home and while I was looking at my new purchase at home noticed that the oil level in the sight glass was completely full. I don’t think by much, it I tilt the bike say 5 degrees the oil line comes into sight and when the engine runs there is no oil in the sight glass


I’m probably over thinking this but I know there is a danger of the crank whipping up excess oil into a foam and preventing proper lubrication.

1. if the crank whips the oil into a foam does it stay in that state even after the engine is cold?

2. if there is no oil...
BlueOvalFitter

Thread 'How Adding Too Much Oil Can Be Detrimental To An Engine'

A very good article to read.

https://www.enginelabs.com/news/what-i-learned-today-with-jeff-smith-such-a-thing-as-too-much/
  • Like
G

Thread 'Oil Overfill Damage'

I have a new Cummins HO with 1000 miles. The lube joint put in 13 quarts and I just saw that the book calls for 12 (I had thought 13 myself).

It is overfull and I have put about 250 miles on the engine at 80-85 MPH. I filled up with Delo 15W-40.

Would there be any real engine damage. The warning in the owners manual is dramatic. I need experiential wisdom here to allay my anxieties.
P

Thread 'Overfilled crankcase = bent conrod?'

Could over-filling an engine with oil cause a conrod to bend? Assuming that no oil got into the cylinder, and therefore no risk of hydro-lock, could an over-filled crankcase result in a bent conrod?

This is a question from another forum, where an engine allegedly had 7.5 litres of oil in it, instead of 4.5, and this was, according to the dealer, the cause of a bent conrod.
W

Thread 'Overfilled engine? Fun video here.'

A new video showing an engine overfilled with oil.
  • Like
 
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himemsys said:
Stop talking to him while he's working on your car. LOL. In all seriousness, some people multitask better than others. I'm very poor at multitasking. If someone starts talking to me while I'm in the middle of a job, I literally have to stop working until they're done. Either that, or ignore them and get them upset at me. Or flat out tell them, "I'm in the middle of something that requires all of my concentration. Can we have this conversation later?"
Click to expand...
I tell my engineers - if you don’t stop helping me - I’ll never finish 😷
 
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That car does not have a dipstick. As others have said the motor is fairly stout and the good news is you did not drive it far. The Italian tune-up recommendation is not a bad idea. I would still be concerned with oil in the PCV system. I recently replaced these on my W210. Maybe your mad scientist mechanic might do it for you? What year is your R230?
https://www.ecstuning.com/b-uro-pre...-breather-hose-kit-set-of-4/112018kitprm~upr/
 
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Egg_Head said:
That car does not have a dipstick. As others have said the motor is fairly stout and the good news is you did not drive it far. The Italian tune-up recommendation is not a bad idea. I would still be concerned with oil in the PCV system. I recently replaced these on my W210. Maybe your mad scientist mechanic might do it for you? What year is your R230?
https://www.ecstuning.com/b-uro-pre...-breather-hose-kit-set-of-4/112018kitprm~upr/
Click to expand...
Agree with all - except I would never use Uro parts on any car I own.

Case in point - OEM Volvo PCV hoses last for 20 years.

2004 XC90 had Uro hoses installed in the PCV system - three years later they were cracked and leaking.

Uro is generally garbage. Stick with OEM for the PCV system parts on your Mercedes.
 
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