Dealer Oil Change

gweets

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Buick Ownership
Buick 2015 Regal T
Does anyone know what oil manufacturer and type (full synthetic or blend) the Buick dealers use for the maintenance that's included for the first 2 years?



Thanks
 
I'm pretty sure they use the oil labeled AC Delco dexos1 5W-30. It's what's for sale in the parts department if you really want to buy their oil. No idea who makes the oil for GM, however; but I believe it's a synthetic blend.
 
I'm pretty sure they use the oil labeled AC Delco dexos1 5W-30. It's what's for sale in the parts department if you really want to buy their oil. No idea who makes the oil for GM, however; but I believe it's a synthetic blend.


That is correct, for your 2 years of oil changes you get the Delco Dexos 2 5W-30, for an additional cost you can upgrade to Mobil 1 Full Synthetic or another full synthetic that your GM Dealer carries, since day one I have ran the Mobil 1. And for the records the Delco Dexos Semi Synthetic is a great oil, I work at a GM Dealer and know some about it, enough to have ran it in my 5.3 pick up since 2011, but choose Mobil 1 for my Regal as I run it harder, and also higher engine temps etc
 
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Thank you for the replies. The reason I asked is because I also prefer a full synthetic oil. I had changed the oil with around 1500 miles with Mobil 1 and a K&N filter, if I bring it to the dealer for the complimentary oil change, I will request the full synthetic.
 
Thank you for the replies. The reason I asked is because I also prefer a full synthetic oil. I had changed the oil with around 1500 miles with Mobil 1 and a K&N filter, if I bring it to the dealer for the complimentary oil change, I will request the full synthetic.

You only get the standard oil for free. If you want full syn, you'll have to pay extra. I just buy Mobil 1 at Costco when it's on sale and bring it to the dealer.
 
^lol I'm surprised they do it. Can't stand when people supply their own stuff. 9/10 times it's wrong

It also depends how long you go between oil changes. If you use the oil life monitor (which I wouldn't...) then go fully synthetic, or if you drive it quite hard also go fully synthetic. If you're doing more frequent oil changes (i.e. 3mo/5000k) then the dexos is perfectly fine. No sense paying more for no reason unless you'll actually benefit.
 
It also depends how long you go between oil changes. If you use the oil life monitor (which I wouldn't...) then go fully synthetic, or if you drive it quite hard also go fully synthetic. If you're doing more frequent oil changes (i.e. 3mo/5000k) then the dexos is perfectly fine. No sense paying more for no reason unless you'll actually benefit.

Amen. 🙂
 
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^lol I'm surprised they do it. Can't stand when people supply their own stuff. 9/10 times it's wrong

It also depends how long you go between oil changes. If you use the oil life monitor (which I wouldn't...) then go fully synthetic, or if you drive it quite hard also go fully synthetic. If you're doing more frequent oil changes (i.e. 3mo/5000k) then the dexos is perfectly fine. No sense paying more for no reason unless you'll actually benefit.

Why wouldn't you go by the OLM? I only go by the OLM. Manual said to do it so I figured I'd see how long it lets me go on the same oil and I average 7k(I do 100 miles a day) on an oil change. 7k seemed way to long to me so I sent a sample of the last two oils for analysis and they said the monitor was actually being conservative. It was actually a pretty neat report they provided.
 
Why wouldn't you go by the OLM? I only go by the OLM. Manual said to do it so I figured I'd see how long it lets me go on the same oil and I average 7k(I do 100 miles a day) on an oil change. 7k seemed way to long to me so I sent a sample of the last two oils for analysis and they said the monitor was actually being conservative. It was actually a pretty neat report they provided.

As long as you send in the oil for testing then you know for sure. What oil do you use?
 
As long as you send in the oil for testing then you know for sure. What oil do you use?

Still under warranty so it goes to the dealer and based on earlier in this thread someone said delco dexos 2 5w-30
 
Still under warranty so it goes to the dealer and based on earlier in this thread someone said delco dexos 2 5w-30

Thanks for testing. It's good to know how long it lasts since I'm still under my freebie old changes.

Any chance you would share the report results?
 
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Let me know if that works or not..
 

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^lol I'm surprised they do it. Can't stand when people supply their own stuff. 9/10 times it's wrong

I am sure they will happily let the customer bring in their Mobil 1 when the dealer was on the hook for the bill in the first place. I imagine they would take a dimmer view of it on a customer pay job.
 
I have used Blackstone Labs for years. Their reports are a great source of information on engine wear and performance. I highly recommend visiting their website and browsing their articles on oil. No myths, just facts.
 
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