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Dealer repeatedly overfilled oil level

3213 Views 28 Replies 13 Participants Last post by  Dr. Dyno
I just completed my second 10,000 mile Toyota dealer service. On both services I found my dipstick level was 1/2" above the full mark on the dipstick. I returned the vehicle both times and requested that the level be corrected. The first time it was returned to me with the level exactly on the full mark. The second time I was told it was corrected, but later I discovered it was not. That service occurred last week. Frustrated I decided to do it myself, so I drained 1/2 quart and found the level to be just a hair above the full mark. I then wrote an email to the service manger explaining what happened. The reply I received basically told me I was being nit-picky and that the oil level being overfull is not an issue. Is he right? I was always told that the oil level should never be much above the full mark. I asked this question; "If your service department added the specified amount of oil why would it be 1/2 quart over?" I got no answer. Doesn't the filter hold about 1/2 quart? Is it possible they didn't bother changing the filter? Feedback would be appreciated. Thanks.
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You're the 2nd person this week to claim overfilling by about 1/2".

On the hybrid it's rumored to be more critical. The other thread called the dealership where service was done and they were not interested in draining. His local dealership fixed it in 2 days or so after the request.

If you go back in 10,000 miles, have them write on the invoice to add only 4.5 quarts (the book says 4.8). It's rumored that a shop adds 5 quarts. Short of reading a dipstick, so far nobody knows for fact the shops are using 5 quarts.
 

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Overfilling by 2/10ths of a quart is not going to harm your engine. If you want to do the oil changes right, do them yourself. I have been using exactly 5 quarts (4.8 w/ oil filter is recommended) and have almost 40k miles, with no issues. I change my oil every 5,000 because my driving conditions, which are the same as described by 90% of people on these forums.

Another example of a car that I continually use 5 quarts instead of the 4.8 quarts, is my 2012 Chevy Sonic with the 1.8L. Been doing that since I got the car with 98k miles and haven't had any issues from being 2/10ths of a quart over the recommended level. That car has almost 175k miles on it now.

The only time I would be concerned is if they over fill the oil by 0.5-1 quarts or more. Otherwise, don't worry about it, these engines are engineered to have some sort of leeway with fluid levels. Transmissions are a whole different beast though.
There is a lot of controversary and discussion regarding over-filling in the new hybrid motor. This will continue for about 15 years as we need a new generation of people to take over -anybody who has changed oil half of their life will refuse to consider different technology exists.
I don't have an opinion either way but these threads have been turning into arguments because people who bought a car say that overfilling it with oil is okay because it was in the past.
The 2012 Sonic probably uses a different motor than the 2022 RAV4.
Auto start/stop has been around several years but somebody once said it is stupid then other people keep saying the same thing without actually using their own opinion. One of these days that argument may end but we're only a few years into that subject.
Just like oil levels, this is new territory and like I mentioned, we need a new generation to step in.
We still do things like our grandfathers did. When we become the grandfathers, the newer generation will start adapting to our current 2022 technologies.
 

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Hey, even dropouts need a job.
I know people who decide not to work, even if educated.
If not for the auto-industry, where else to you think high school kids or dropouts work?

Yes, I'm being sarcastic but I will be if we keep suggesting the employees are uneducated.
They may not be the proper person to change oil, however they should also be taught by the senior staff of the correct procedure.
If an oil change tech at a dealership does not know the proper procedure then it is fault of the service manager for not training the tech.
If the tech is instructed to add 5 quarts of oil to a vehicle requiring 4.5, then it is not at all on the tech. They have done as instructed. If they program the filler to go with 4.5 quarts and there is an engine failure later that week, it is the techs fault and will be fired for using his brain and doing it 'right'.
 
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