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Old 04-21-2011, 05:36 PM   #1
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Silverado oil change advice

I'd like to get some opinions from some of you Silverado guys about oil change advice. I have a 2010 with 11,000 miles on it. It has had the initial oil change at a little over 5,000 miles, well before the oil monitoring system said it was due. We just didn't dare wait longer on the first change. Now at 11,000 miles, the system says there is still 43 percent of the oil life left. Some folks say that with these new engines and sophisticated monitoring systems, it's safe to wait until the oil life percentage nearly runs out. What do you guys think? Thanks in advance.

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Old 04-21-2011, 05:45 PM   #2
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What does the owners manual say?


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Old 04-21-2011, 05:51 PM   #3
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I change my diesel's oil when the oil indicator says 33%.
My dealer does all service on my truck and said that was OK and would not affect my extended service warranty.
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Old 04-21-2011, 06:28 PM   #4
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I did the first one early as you did but from then on its been when the monitor reads 15-20% life left. Get a quality filter as well...heard some rambling about cheaper filters so didnt want to chance it. Im looking at doing the DIffs, Transfer case and Tranny oils now at 140,000kms before i get the new trailer.
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Old 04-21-2011, 06:29 PM   #5
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We just bought a new car (2011 Buick Regal). It also has the computer monitoring of the oil. My best friend is the service manager at the dealership and he advised to bring it in when the computer says 30%. He also advised that GM is using a special oil, I think he said a blend of synthetic and conventional oils, and that using just one or the other could damage the engine. The computer detects your driving conditions and adjusts accordingly for those conditions. I am sure that if you compared milage to % used, you would find that in hot towing conditions the % per milage would decrease faster. I haven't changed my own oil in years and have always gone on the 3,000 miles per oil change schedule on all of my personal vehicles, so I am going to have to change.

BTW on a side note- my service manager buddy had to get a smart phone, per GM, and if one of their customers car's computer advises the driver of an issue, ie.. low tire, oil change, check engine, he receives an email on his smart phone and has a time limit to send that customer an email or call and set up an appointment to resolve the matter. Go figure, you don't even have to pay attention to maintence matters anymore, it's someone's else's problem!
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Old 04-21-2011, 07:08 PM   #6
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If you believe that in this situation, the problem is somebody elses, think again!!
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Old 04-21-2011, 07:30 PM   #7
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as a rule for myself, I have a Diesel and will not go over 5k between oil changes, Towing and all the dang Mountains around here I would rather be safe then sorry, My monitor says it still has 60% plus But, The strain and heat I would Rather spend the money, then Pay differance in repair costs , also I do my Tranny filter every 15 K ( Love the Allason Tranny) and replace my Fuel filter every 30K..

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Old 04-21-2011, 07:32 PM   #8
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Originally Posted by peaches View Post
If you believe that in this situation, the problem is somebody elses, think again!!
I was definitely using sarcasm! I know it's hard to hear it in my typing! LOL
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Old 04-21-2011, 08:14 PM   #9
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OP the link below has some good information on the system
GM Oil life Monitoring System accuracy? - Bob Is The Oil Guy
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Old 04-22-2011, 07:45 AM   #10
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People (especially guys) have strong opinions on things
like oil and tires.
Personally I disagree with the opinion that these engines
should use GM special oil which is supposedly blended
dino and synthetic.

I use Mobile 1.
GM also uses Mobile 1 full synthetic in Corvettes.
I'm betting that either full synthetic or blended are fine.
I change mine every 12 months due to my low mileage.
Truck is 04 and has less than 40K miles on it.
Last few years we had under 7K miles per year.
Some years it's under 5K so I change it annually
(whether it needs it or not....)

Castrol Edge full synthetic claims to have even better
friction reduction than Mobile 1 but if you read the
fine print after the * they say that claim is for "normal"
circumstances. Towing is not included so I figure most
full synthetics are similar enough that any of the name
brands will do a fine job in my high revving little V8.

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