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When do you replace your oil and what brand?

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Old 12-04-2017, 12:40 AM   #1
Matthewstorm
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Default When do you replace your oil and what brand?

My DIC says 63% oil left. I'm wondering at what point the oil should be changed. Also, what brand is recommended. I've used Royal Purple in the past with other cars.
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Old 12-04-2017, 12:54 AM   #2
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Mobil1.
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Old 12-04-2017, 12:57 AM   #3
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When the OLM tells you to or one year, whichever comes first.
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Old 12-04-2017, 12:58 AM   #4
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Quote:
Originally Posted by owc6 View Post
When the OLM tells you to or one year, whichever comes first.
What's OLM?
You wait an entire year?
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Old 12-04-2017, 01:04 AM   #5
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Quote:
Originally Posted by Matthewstorm View Post
What's OLM?
You wait an entire year?
Oil Life Monitor

Not me, I average almost 25,000 miles a year, so I just follow the OLM. Many owners don't drive enough miles to actually "use up" the oil before a year has gone by, because the OLM doesn't take calendar time into consideration, which is why I said the "or one year" comment.

Last edited by owc6; 12-04-2017 at 01:22 AM.
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Old 12-04-2017, 01:28 AM   #6
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Quote:
Originally Posted by owc6 View Post
When the OLM tells you to or one year, whichever comes first.
Quote:
Originally Posted by owc6 View Post
Oil Life Monitor

Not me, I average almost 25,000 miles a year, so I just follow the OLM. Many owners don't drive enough miles to actually "use up" the oil before a year has gone by, because the OLM doesn't take calendar time into consideration, which is why I said the "or one year" comment.
Which is what your owner's manual says.
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Old 12-04-2017, 01:38 AM   #7
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Mobil One. And for me, I change it every other year. By then my computer will probably be reading 75-80%. And it probably won't have 3,000 miles on it.


Last edited by Jimmy W1; 12-04-2017 at 01:40 AM.
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Old 12-04-2017, 04:38 AM   #8
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Mobil 1 , once a year, unless DIC is under 40% then sooner (hasen't happened yet)
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Old 12-04-2017, 07:14 AM   #9
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Annually and Mobil 1.
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Old 12-04-2017, 07:54 AM   #10
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Annually or 5000 miles whichever comes first. Mobil 1 5-30 and Mobil 1 oil filter.

Last edited by jkirk1; 12-04-2017 at 07:55 AM.
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Old 12-04-2017, 10:25 AM   #11
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Mobil 1 full synthetic 5W-30 is as good as you'd ever need. Change it when the OLM tells you on the DIC, which shows up after 5%. Neither the oil nor the engine know or care anything about the number of miles, days, weeks, months, or years that have passed. There is no expiration date or "best if used by" date on the oil container. The one year change shown in the owner's manual is only for the benefit of the dealer to assure your 5yr/100k mile warranty remains valid. The Mobil 1 oil jug even states, "If your vehicle is covered by a warranty, follow the vehicle's oil life sensor or the oil change interval recommended in your owner's manual". Unless you have a late year 2013 car, the warranty is already gone, so follow the OLM.

It seems the more exclusive the car is, the more it gets overly maintained by the owner. The LS3 engine in the Vette is nearly identical to the ones used in pickup trucks, etc for the last 10 years that get used and abused daily. It's not an exotic engine that needs special attention.
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Old 12-04-2017, 10:40 AM   #12
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Quote:
Originally Posted by Vette_DD View Post
Which is what your owner's manual says.


It's a remarkably useful tool that some never take advantage of.
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Old 12-04-2017, 11:20 AM   #13
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I change it when the OLM tells me to (or if it is close and I'm going to do a track day I'll change it before hand).
Fram Duraguard Filter and Penzoil Platinum 5W-30.
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Old 12-04-2017, 12:08 PM   #14
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I got mine last January, put 4K on it so far, OLM says 36%. It probably has Mobil 1 in it now but I plan to change it soon with Driven's Joe Gibbs LS30. It's 5W-30 synthetic specially formulated for modern LS engines. I use their DT40 in my Porsche, it's specially formulated for water-cooled flat sixes.
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Old 12-04-2017, 12:16 PM   #15
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Quote:
Originally Posted by Jimmy W1 View Post
Mobil One. And for me, I change it every other year. By then my computer will probably be reading 75-80%. And it probably won't have 3,000 miles on it.

Change mine evey other year also, and it probably doesn't even need it then. But I don't have to use Mobil One. I'll get what ever quality syn is on sale. Lots of myths about oil changing in all forums. I'll give half the day and there will be several post with long paragraphs on the "E=MC" squared properties of oil and why it should be changed at least once a year regardless of mileage......
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Old 12-04-2017, 12:23 PM   #16
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Quote:
Originally Posted by HOXXOH View Post
Mobil 1 full synthetic 5W-30 is as good as you'd ever need. Change it when the OLM tells you on the DIC, which shows up after 5%. Neither the oil nor the engine know or care anything about the number of miles, days, weeks, months, or years that have passed. There is no expiration date or "best if used by" date on the oil container. The one year change shown in the owner's manual is only for the benefit of the dealer to assure your 5yr/100k mile warranty remains valid. The Mobil 1 oil jug even states, "If your vehicle is covered by a warranty, follow the vehicle's oil life sensor or the oil change interval recommended in your owner's manual". Unless you have a late year 2013 car, the warranty is already gone, so follow the OLM.

It seems the more exclusive the car is, the more it gets overly maintained by the owner. The LS3 engine in the Vette is nearly identical to the ones used in pickup trucks, etc for the last 10 years that get used and abused daily. It's not an exotic engine that needs special attention.
I do all my cars annually, not just the Corvette.
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Old 12-04-2017, 12:27 PM   #17
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Annually or at 20%, whichever comes first with Mobil 1.

Last edited by Sunnyvale Dave; 12-04-2017 at 12:28 PM.
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Old 12-04-2017, 12:30 PM   #18
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I just add oil as I need it. Eventually it all gets changed out.
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Old 12-04-2017, 12:36 PM   #19
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I change it one year or when the oil lie monitor says 10% whichever is first.
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Old 12-04-2017, 12:52 PM   #20
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Mobile 1 5w-30 once a year or DIC at 25%

BTW to the OP, if you really want to crazy about oil: https://bobistheoilguy.com/
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