New GMC
- Thread starter bjd13
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Use the free oil change/tire rotations from the dealer. You get 4 in two years or 24k. They have to use Dexos1 which is a synblend. The dealer I went to in Hanover uses the actual AC-Delco branded Dexos1. After that I would use a high quality synthetic, Pennzoil Platinum and a fram ultra filter would be a nice combo. Stick with the OLM. They recalibrated them to consider the DI engines. My 2015 went about 5,300 until it went off which is about as long as I would go with a synblend in a DI engine.
Didn't you get an OWNERS MANUEL with your purchase?
Simple....Read it....and use the recommended oil grade.
Simple....Read it....and use the recommended oil grade.
Here you go:
Originally Posted By: ;796896
If it were my car I wouldn't be running that.
Castrol (as well as Valvoline) has had a recent history of not passing all of the specs they claim to "exceed".
Based on their product data sheets, the oil is slightly thicker than other brands at both hot and cold, and the colder it gets the thicker it is. Their 5w20 is actually much thicker at very, very cold temps than their 5w30.
It could be draining out of the vtc actuator more easily. It could be as simple as that. or not.
I'd be looking at the following oils:
Shell and their sister brands, Pennzoil and Quaker State. (both are owned by Shell)
The Shell oil is usually less expensive, but just as good.
Motorcraft Semi Syn 5w20 and other ConocoPhillips oils. It seems now that's who makes MC oil, as well as Honda's US factory fill and dealer oil.
Originally Posted By: ;788226
Dump the Castrol and try Motorcraft 5w20. or even Mobil clean 5000 5w20 to see if anything changes.
I've had issues with Castrol when I had my Integra. On the first valve adjustment, I pulled the valve cover and found what I can describe as "dirt tracks" on the underside, from the oil being spun by the cams. I was beyond anal retentive with that car and it never saw a mile over 3k on changes. I stopped using Castrol after that.
The "high mileage" oils are nothing but a marketing gimmick and most are made with super cheap base stocks.
I do agree, that rate of oil consumption is not acceptable.
Originally Posted By: ;796896
If it were my car I wouldn't be running that.
Castrol (as well as Valvoline) has had a recent history of not passing all of the specs they claim to "exceed".
Based on their product data sheets, the oil is slightly thicker than other brands at both hot and cold, and the colder it gets the thicker it is. Their 5w20 is actually much thicker at very, very cold temps than their 5w30.
It could be draining out of the vtc actuator more easily. It could be as simple as that. or not.
I'd be looking at the following oils:
Shell and their sister brands, Pennzoil and Quaker State. (both are owned by Shell)
The Shell oil is usually less expensive, but just as good.
Motorcraft Semi Syn 5w20 and other ConocoPhillips oils. It seems now that's who makes MC oil, as well as Honda's US factory fill and dealer oil.
Originally Posted By: ;788226
Dump the Castrol and try Motorcraft 5w20. or even Mobil clean 5000 5w20 to see if anything changes.
I've had issues with Castrol when I had my Integra. On the first valve adjustment, I pulled the valve cover and found what I can describe as "dirt tracks" on the underside, from the oil being spun by the cams. I was beyond anal retentive with that car and it never saw a mile over 3k on changes. I stopped using Castrol after that.
The "high mileage" oils are nothing but a marketing gimmick and most are made with super cheap base stocks.
I do agree, that rate of oil consumption is not acceptable.
Last edited:
Originally Posted By: bjd13
Not worried about grade just asking about brands. Read my post did not ask for grade.
Your vehicle is not going to know the difference between brands.....so just go for a top-shelf oil such as Pennzoil, Mobil, and several others. Choose one with the best price or rebate.
Not worried about grade just asking about brands. Read my post did not ask for grade.
Your vehicle is not going to know the difference between brands.....so just go for a top-shelf oil such as Pennzoil, Mobil, and several others. Choose one with the best price or rebate.
Originally Posted By: bjd13
Not worried about grade just asking about brands. Read my post did not ask for grade.
Castrol Magnatec has had some great VOA's on this website including in TGDI Eco-Boost engines for over 9k miles. So in a GDI (but no turbo) it should do great as well. It is Dexos 1 certified so it meets your engine's requirements.
Truth be told, the requirements for Dexos 1 are pretty stringent so pick a major brand of semi or full synthetic and you'll be doing just fine.
Not worried about grade just asking about brands. Read my post did not ask for grade.
Castrol Magnatec has had some great VOA's on this website including in TGDI Eco-Boost engines for over 9k miles. So in a GDI (but no turbo) it should do great as well. It is Dexos 1 certified so it meets your engine's requirements.
Truth be told, the requirements for Dexos 1 are pretty stringent so pick a major brand of semi or full synthetic and you'll be doing just fine.
Nice truck.
I have been looking at those frankly.....my 5.3L Silverado is pushing 200K...runs like a top but 200K is 200K
Purrs like a kitten......
Any SN rated oils is going to do the trick. Run the manufacturer recommended viscosity for your region/driving habits......SN rated oil and you should have that motor a long long time. Air/Oil filters are very important.....
I am a Shaeffers 7000-9000/Kendall GT-1 fanboy based on results in my cars/trucks....
I have been looking at those frankly.....my 5.3L Silverado is pushing 200K...runs like a top but 200K is 200K
Any SN rated oils is going to do the trick. Run the manufacturer recommended viscosity for your region/driving habits......SN rated oil and you should have that motor a long long time. Air/Oil filters are very important.....
I am a Shaeffers 7000-9000/Kendall GT-1 fanboy based on results in my cars/trucks....
Originally Posted By: BikeWhisperer
Truth be told, the requirements for Dexos 1 are pretty stringent so pick a major brand of semi or full synthetic and you'll be doing just fine.
Stringent might be a bit excessive of a word to use. Many oils exceed the minimum requirements of Dexos1 in several areas. And GF-5 exceeds dexos1 in ethanol handling, which seems strange since GM is fully on board with the ethanol thing. It is all a mixed bag to some degree. I don't waste a lot of time worrying about it. The oil I use in my GM vehicles has never been on the "approved" dexos1 list since dexos1 came on the scene and haven't lost a minute of sleep. My 2013 and 2015 have been getting a oil that does claim dexos1 compliance, but not on the "approved" list. From the results thus far, nothing to indicate that they are not doing a great job in those motors.
I would use the free oil change thing if it is cost effective to do so. It never has been for me. Let's see, shut down my business for a morning or afternoon, drive an hour each way to the dealer and burn up a few gallons of fuel in the process, etc. That "free" oil change just cost me a minimum $1000. Nah, I do them myself on my off time.
Truth be told, the requirements for Dexos 1 are pretty stringent so pick a major brand of semi or full synthetic and you'll be doing just fine.
Stringent might be a bit excessive of a word to use. Many oils exceed the minimum requirements of Dexos1 in several areas. And GF-5 exceeds dexos1 in ethanol handling, which seems strange since GM is fully on board with the ethanol thing. It is all a mixed bag to some degree. I don't waste a lot of time worrying about it. The oil I use in my GM vehicles has never been on the "approved" dexos1 list since dexos1 came on the scene and haven't lost a minute of sleep. My 2013 and 2015 have been getting a oil that does claim dexos1 compliance, but not on the "approved" list. From the results thus far, nothing to indicate that they are not doing a great job in those motors.
I would use the free oil change thing if it is cost effective to do so. It never has been for me. Let's see, shut down my business for a morning or afternoon, drive an hour each way to the dealer and burn up a few gallons of fuel in the process, etc. That "free" oil change just cost me a minimum $1000. Nah, I do them myself on my off time.
I don't put much stock in GF-5 being more stringent in anything. Considering I've yet to see a dexos1 lube that wasn't simultaneously ILSAC rated, it doesn't matter much.
Do NOT over extend the OCI. GM had issues with 3.6 timing chains, they set the OCI interval to 7,500 miles.
Congrats on the new truck.
Congrats on the new truck.
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