I recently puchased my 09 TC sedan with just under 3,000 miles and was wondering if there is any way to tell if the oil has been serviced already, such as the factory color of the oil filter etc.

btw, I love this car, so much fun to drive.

Thanks.

 

nope not really, what does the Oil Life say on the DIC?

unless the dealer has record of it being done in the service records

 

I would just go do a quick oil change yourself. I did that when I purchased my car. Dont ever trust the dealer lol

 

80% oil life left, but I think, i'll do an oil change just to be safe. Thanks for the replies.

 

factory oil filter should have red o-ring on filter if it has not been changed.

 

Thanks so much.

 

With 3000 miles on the odometer and 80% oil left, I'd think it's been changed. Probably around 1500 miles since the last change, based on how many miles my oil lasts.

 

it's been changed - or reset.
if the filter is a legit delco one, then it's either original, or a GM dealer did the change.

 

Stock oil filter gasket is green, not red. 80% oil life: it has not been changed. Gm's oil life monitor takes into account the way youve been driving. If you've been ******* on it for 5k miles you'll be at about 10-20%.

 

sorry I would have to repsectfully disagree;
I have been told on good account that it's calculated purely on the conditions in which, and how the car is driven...

 

Well then, I will happily retract that part of my statement.
That might just be b/s our service writers tell the customers. However, If I am not mistaken, GM recommends oil changes every 5000-7000 miles depending on if you use dexOS or not, and also driving habits.

 

I know they will push 5k oil changes... that's nothing I would argue.

 

I've seen brand new looking golden oil at 5k miles, and thin black oil at 2500. It's a very inexact art.

 

With the Engine Oil Life System, as has been indicated by other posters, the system will display "CHANGE OIL SOON" when the oil life has been diminished. Your vehicle's manual indicates that "it is possible that, if driving under the best conditions, the oil life system might not indicate that an oil change is necessary for over a year" but recommends that oil and filter be changed out at least once a year. If the system were to ever be accidentally reset, the recommendation is to get a change done at 3,000 miles since the last change.
To reset the system when you do change your oil:
1. Turn the ignition to ON/RUN, with the engine off.
2. Press the information and reset buttons on the
Driver Information Center (DIC) at the same
time to enter the personalization menu. See DIC
Vehicle Personalization on page 3-52.
3. Press the information button to scroll through the
available personalization menu modes until the
DIC display shows OIL-LIFE RESET.
4. Press and hold the reset button until the DIC
display shows ACKNOWLEDGED. This will tell you
the system has been reset.
5. Turn the key to LOCK/OFF.
If the CHANGE OIL SOON message comes back on
when the vehicle is started, the engine oil life system
has not reset. Repeat the reset procedure.

I hope this is helpful for you,
Sarah
GM Customer Service

 

the OLM takes into account the following.

time
temperature
oil pressure
rpm (more or less to monitor if your aggressive driving or not.)

and a few other variables to get your estimated oil life remaining.

 

not necessarily, i use AC Delco filters when i change oil

 

Delco FTW, We had defense, which suck and the media folds in on itself, Pronto which is slightly better, but Delco is still the best IMO. The cheap aftermarket ones just aren't as good.

 

well, around here the delco one is easily double a wix or fram;
of those two options, I'd rather buy the fram.

 

Anyone knows the p/n of the Mobil oil filter?

 

Fram have crushed on me

 

I have observed the fram filter to collapse on itself when going over mileage;
I never wait till the oil life monitor hits zero ~ I generally have it changed by about 40%

I'd wager that the filter collapsing on itself is purely due to the fact that it's been in service beyond the duration it should have been used...

the local auto parts chain trys to sell up the wix filters ~ because wix has replaced their house brand ~ but I'd rather buy a product that's been proven to be decent, rather than save a couple bucks over the span of a year...

and iirc every single brand has tests showing issues... to the best of my knowledge, the delco fintlers are all purolator filters ~ just relabled ~ and that the purolator filters are generally accepted as the best line on the market...
I'd have to drive for about an hour to the closest auto parts store which sells purolators... so that's why I don't run them.

just my thoughts.

 

i change mine when its to around 20%

one thing i noticed about the Delco ones are they have more/stronger looking plastic on the inside to keep the filter from crushing

 

You're the first person ive ever seen in the last 8 years of being on car forums that says they use Fram.

I have used Mobil 1 everything in all my cars. Reading through oil threads still as I might switch for the Coblat. Recent thing I read said, I think, was Havoline was one of the better ones if you drive aggressively.

 

i use to use Fram on my SS
still use them on my G5

 

i've been using wix for the last 4 oil changes and they've all looked good when changing the oil.