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.