too much engine oil?
Thread Starter
Lexus Test Driver
Joined: Nov 2013
Posts: 1,019
Likes: 8
From: CA
too much engine oil?
had my first oil change by the dealer this weekend and they had put in way too much oil, i believe they said it was 7.7 quarts. So they redid the oil change and put in 7 quarts, or so they say. When I check the dipstick, it's about 1.5 cm above the high level marker. Is this alright or should I ask them to redo it again? I believe it requires 6.6 quarts, so will the .4 extra quart cause any harm?
Lead Lap
Joined: May 2011
Posts: 548
Likes: 0
From: Los Angeles, CA
A quick search on google states that an excessive amount of engine oil may cause various damages over time.
I recommend going through normal oil changing procedure to verify if the amount is accurate.
I recommend going through normal oil changing procedure to verify if the amount is accurate.
Driver School Candidate
Joined: Jul 2014
Posts: 45
Likes: 0
From: CA
sorry but 3ISRC has it wrong. It is bad to have too much oil in the engine. Having too much oil in the engine could cause certain engine seals to go bad quicker and possibly the crankshaft to spin off balance. Theres explanations all over the web. So just google it if you want to learn more in depth about it
Driver School Candidate
Joined: Feb 2015
Posts: 26
Likes: 0
From: TX
Eventually if you overfill enough, it will overflow up to the crank shaft and bad things can start happening as the crank shaft stirs up the oil. But like 3ISRC said, something like 0.4 qt will not be enough to fill it up that much.
Intermediate
Joined: Jul 2015
Posts: 450
Likes: 72
From: AZ
This is exactly my point. I'm trying to help OP on not wasting his time over this. .4 is nothing to worry about and will soon be consumed. There's always a small wiggle room I would think to allow situations like this. Now if it was 1qt that's a whole another concern.
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Intermediate
Joined: Jul 2015
Posts: 450
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From: AZ
Driver School Candidate
Joined: Feb 2015
Posts: 26
Likes: 0
From: TX
For what it's worth I have overfilled by a quart on my cars and literally nothing happened. Cars have tolerances, you know. If it broke with a simple half quart extra then everyone's cars would be taking a **** on the roads from the average dullard.