How to know if oil has been changed at dealership

[Rizop]

Sent in the lm2 Yukon for an oil change today . When I got home i found that it appears that they forgot to reset the oil life monitor . Is there any feasible way to check if the oil was actually changed ? The oil is already pitch black as expected for a diesel

 

[Blackcar]

I would say that since oil is black and oil life monitor wasn't reset good chance it wasn't changed.

You might look to see if drain plug looks to have been wiped off and around filter for signs of clean area or if looks like nothing has been touched would wonder for sure.

 

[Stbentoak]

Well, if your write up was correct and included the correct amount of oil and a new filter, it's more than likely that it got changed. Not abnormal for these places to forget to reset the oil minder. Take a quick look underneath and see if it's a brand-new oil filter. If it is, there's no way they change the filter and didn't pull the plug to change the oil.

 

[Silverado4x4]

Sent in the lm2 Yukon for an oil change today . When I got home i found that it appears that they forgot to reset the oil life monitor . Is there any feasible way to check if the oil was actually changed ? The oil is already pitch black as expected for a diesel

How far did you drive home before you checked the oil? When I had my 2004 LLY Duramax it would take a few days or about 100 miles before the oil was pitch black. Iam saying the oil wasn't changed.

 

[Rizop]

How far did you drive home before you checked the oil? When I had my 2004 LLY Duramax it would take a few days or about 100 miles before the oil was pitch black. Iam saying the oil wasn't changed.

Roughly about 20 miles . I took the interstate to give the dpf some burn

 

[OR VietVet]

Is there a new oil change sticker on the upper left corner of w/s?

 

[Rizop]

Is there a new oil change sticker on the upper left corner of w/s?

There sure is . Also , the drivers seat was pushed all the way back when I picked the vehicle up 5 hours later .

 

[OR VietVet]

I think the other key is to look at the filter and look at the drain plug for fresh tool marks on it.

Once you are satisfied that the oil has been changed, reset the reminder yourself.

 

[BattleTank]

Is there a new oil change sticker on the upper left corner of w/s?

Just because a sticker was installed, doesn't mean it was actually done.

Visually inspect the oil filter. It should be clean and dry. Oil pan drain plug should be recently (molested).

 

[Tahoe14]

You could always mark the filter next time and the drain plug.

 

[Rizop]

I should definitely take before and after pics of my filter and drain plug next time .

I just crawled under and took some not so great photos .

It looks like the filter has a decent amount of oil on it ; it seemed relatively wet still .

 

[OR VietVet]

You could always mark the filter next time and the drain plug.

OR, could acquire the needed tools and drain pan and do the oil/filter change yourself, to know for sure. The oil change people at the dealers, is typically the low man/woman on the Totem pole. I ran shops. I have been told by customers that oil changes are easy and I then would say, "You are correct, IF it is done right".

 

[OR VietVet]

I should definitely take before and after pics of my filter and drain plug next time .

I just crawled under and took some not so great photos .

It looks like the filter has a decent amount of oil on it ; it seemed relatively wet still .

Go back to the dealer. Do not say that you think the oil was not changed. Tell them you see an oil leak at the filter and you want a new one and an inspection for why it is wet.

I refer to my last post. Get the tools and drain pan and do it yourself. Parts stores and shops will take the old oil and filter.

 

[Rizop]

The sad truth of this is , I usually change the oil myself but let the dealership do it months ago so I could develop a rapport with the service department .

I tried changing it myself once again a couple of days ago but found that they had torqued the drain plug to a superhuman spec that I couldn’t untorque, so I sent it into the dealership once again lol

 

[BattleTank]

Go back to the dealer. Do not say that you think the oil was not changed. Tell them you see an oil leak at the filter and you want a new one and an inspection for why it is wet.

I refer to my last post. Get the tools and drain pan and do it yourself. Parts stores and shops will take the old oil and filter.

^^^^ THIS.
I'm 10 years heavy truck dealership also. Lowest man on totem pole gets stuck with PM's. They aren't always the sharpest tool in the drawer.

 

[OR VietVet]

The sad truth of this is , I usually change the oil myself but let the dealership do it months ago so I could develop a rapport with the service department .

I tried changing it myself once again a couple of days ago but found that they had torqued the drain plug to a superhuman spec that I couldn’t untorque, so I sent it into the dealership once again lol

What tool were you using to loosen the drain plug? If all else fails, use a 6 point socket and 1/2" ratchet. Long ratchet if needed.

 

[BattleTank]

I'm glad these engines don't have the plastic oil pans and pressed in drain plug bosses.

 

[Rizop]

What tool were you using to loosen the drain plug? If all else fails, use a 6 point socket and 1/2" ratchet. Long ratchet if needed.

Thanks so much . I was using this exact tool set , but looks like the dealership torqued it to insane levels . I used all my effort , but at the first sign of rounding the bolt , I backed off , lest I create a disaster

 

[Antonm]

The sad truth of this is , I usually change the oil myself but let the dealership do it months ago so I could develop a rapport with the service department .

I tried changing it myself once again a couple of days ago but found that they had torqued the drain plug to a superhuman spec that I couldn’t untorque, so I sent it into the dealership once again lol

I'd guarantee they used an impact gun on the drain plug.

For dealership mechanics, speed is the ONLY thing that matters. They get paid for a given amount of hours to do a certain task. Say an oil change pays 1 hour, (its doesn't , just using 1 hour for easy math) then they get paid one hour of their labor rate to do that oil change.

If they rush through it, do a crappy job, but manage to get 3 oil changes done in 1 hour, then guess what, they get paid 3 hours worth of pay for that 1 hour worked. So speed in KING, and the ONLY thing that matters because that's money to them.

Impacts guns are quick, so they use them for literally everything in the name of speed.
...

 

[BattleTank]

Just like the guys that use tools to install dry oil filters. FML.