Synthetic Oil
Senior Member
Joined: 11-04-2012
Posts: 1,548
From: Dedham Maine
The only debate here is if you read entire paragraphs or just the phrases that you want. I just don't know why I bothered quoting entire sentences, when evidently only 2 of the words are actually there to be read.
GM says "DEXOS is DEXOS". They have an entire lab set up to make sure that any product with the DEXOS label on it, and a license number is the same as any other with the same label and a license number.
One of the things that the DEXOS spec does is replace the API specs. They may still be there, but not all oils with identical API codes are DEXOS.
GM says "DEXOS is DEXOS". They have an entire lab set up to make sure that any product with the DEXOS label on it, and a license number is the same as any other with the same label and a license number.
One of the things that the DEXOS spec does is replace the API specs. They may still be there, but not all oils with identical API codes are DEXOS.
Platinum Member
Joined: 05-09-2006
Posts: 6,805
From: "Upland" Mesa, Arizona
The important thing to remember is that DEXOS oil, and brands that meets DEXOS specifications are synthetic blend oils which use a mixture of synthetic and non-synthetic base oils for longer engine life.
GM vehicles that require a full synthetic still have oil fill caps labeled "Mobil 1".
GM vehicles that require a full synthetic still have oil fill caps labeled "Mobil 1".
This is not necessarily true for the newer GM vehicles. They omit the Mobil 1 recommendation and state something like, "Use dexos full synthetic oil". At least on the last 3 vehicles that I checked that recommended/required for full synthetic (2 Vettes and a Camaro), said that.
Deceased
Joined: 06-30-2010
Posts: 25,739
From: Kannapolis NC
Thanks for the heads up Snoopy, it's been two or three model years since I looked under the hood of a "Vette or SS Camaro, good to know.
Maybe GM has cut some ties with Mobil.
Regardless, that's all I use, why change after 30+ years.
Maybe GM has cut some ties with Mobil.
Regardless, that's all I use, why change after 30+ years.
Senior Member
Joined: 01-13-2008
Posts: 4,708
From: Washington State, where it rains
No different then Harley trying to say you HAvE to use their inferior oils because they own the name and the licensing rights...forcing you to buy their oil is a money advantage until the competition catches up...which at that time big bank has already happened.
Platinum Member
Joined: 01-09-2007
Posts: 16,081
From: SE USA
X 2, precisely....
Senior Member
Joined: 07-05-2008
Posts: 5,464
From: Akron Ohio
This statement MAY lead to some confusion ^^^^^^^. dexos approved oils are FULL synthetic or synthetic blend......depending on what is required/commended by the vehicle manufacturer. But GENERALLY, turbo, supercharged and TRUE hi-performance cars are recommended/required for full synthetic.
In short, any dexos approved oil that is full synthetic will be ok in any GM car. While the synthetic blend, dexos approved oils are not recommended/required for those vehicles specifically calling for FULL synthetic.
I believe Mike mentioned this in post #6 of this thread.
In short, any dexos approved oil that is full synthetic will be ok in any GM car. While the synthetic blend, dexos approved oils are not recommended/required for those vehicles specifically calling for FULL synthetic.
I believe Mike mentioned this in post #6 of this thread.
I would not be surprised that most all cars will be full synthetic before long from the factory. They have already made changes to the grade in the new LT truck engines to a 0-w30 If I read correctly, The next step may just be a full syn. I think they would be there now if not for scaring people who do not understand the cost.
Senior Member
Joined: 10-06-2011
Posts: 1,150
From: Mesa, AZ
This is probably very true. If changing your own oil the difference is not bad usually around $10 more but can be had for as little as $5 more then dino. But have a shop do it for you, you were probably used to $15-$20 per oil change. Using full syn and you are usually looking at $20-$30 more to use full syn at the same shop.
Senior Member
Joined: 01-13-2008
Posts: 4,708
From: Washington State, where it rains
Yeah, but whats the real difference between Dexos and regular syn oil? Anybody know? Its not about going syn..its about having to use a specific type of syn oil. Starting to get like the trans oils back in a day.But at least that was all about what seals were used in the trans, not about who owned the licensing rights.
Senior Member
Joined: 10-06-2011
Posts: 1,150
From: Mesa, AZ
Yeah, but whats the real difference between Dexos and regular syn oil? Anybody know? Its not about going syn..its about having to use a specific type of syn oil. Starting to get like the trans oils back in a day.But at least that was all about what seals were used in the trans, not about who owned the licensing rights.
I was thinking Hyper was just meaning in general in the automotive world. Not GM 2011 and up specific. Were you being specific Hyper?
Last edited by 07azhhr; Aug 27, 2013 at 10:04 PM.
