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Old 03-01-2011, 01:06 PM
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There are instructions in the owner's manual as well. As many other people have said, break-in is based a lot on opinion. My truck has 900 miles, I started doing acceleration runs after 500 miles, and I haven't changed the oil yet.
Old 03-03-2011, 09:34 AM
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Damn i am at 2300 miles and haven't changed my oil yet! I thought you were supposed to drive until you need an oil change because of extra additives they add to coat the internals.
Old 03-03-2011, 09:51 AM
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Originally Posted by BrutalSierra
Damn i am at 2300 miles and haven't changed my oil yet! I thought you were supposed to drive until you need an oil change because of extra additives they add to coat the internals.
Never heard of that and it doesn't make much sense to me.

During break in, its usually beneficial to change your oil early because of the particles that are built up with the break in process.
Old 03-03-2011, 12:30 PM
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Somebody else on here said to drive until the display said to change the oil because there were additives from the factory to aid break-in. My display says I have 85% oil life left (I have 1100 miles on my truck). The owner's manual says nothing about when to change the oil the first time; the only mention of a break-in period is a suggestion to keep the truck below 55mph and not to maintain a steady speed for the first 500 miles. I was thinking about changing my oil within the next 150 miles but I am not sure yet.
Old 03-03-2011, 12:44 PM
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Originally Posted by rjwz28
Somebody else on here said to drive until the display said to change the oil because there were additives from the factory to aid break-in. My display says I have 85% oil life left (I have 1100 miles on my truck). The owner's manual says nothing about when to change the oil the first time; the only mention of a break-in period is a suggestion to keep the truck below 55mph and not to maintain a steady speed for the first 500 miles. I was thinking about changing my oil within the next 150 miles but I am not sure yet.
I was told that also 5yrs ago when i bought a New cobalt.
Old 03-03-2011, 12:56 PM
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Did the dealer tell you that or did you hear it elsewhere?
Old 03-03-2011, 01:45 PM
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The dealer told me that back in 07. They said when they assembled the motors and ran them to test them most the stuff came out then. And i assume they would put new oil/filter on and that additive if the dealer didn't me.

I like how were the only ones replying to all these topics.
Old 03-03-2011, 03:25 PM
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Originally Posted by BrutalSierra
The dealer told me that back in 07. They said when they assembled the motors and ran them to test them most the stuff came out then. And i assume they would put new oil/filter on and that additive if the dealer didn't me.

I like how were the only ones replying to all these topics.
Interesting. Maybe I'll wait until my oil is at 50% before I change it to try to stay safe both ways

I agree, that's pretty crazy
Old 03-03-2011, 03:52 PM
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Originally Posted by rjwz28
Interesting. Maybe I'll wait until my oil is at 50% before I change it to try to stay safe both ways

I agree, that's pretty crazy
yeah mine is still like 78% or 68% can't remember. I barely have 2300 miles on it.

Guess all these other people must work for a living. I usually sit at work behind my laptop and look busy lol. I have the gut to prove it!
Old 03-03-2011, 05:26 PM
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Originally Posted by Three6GMC
Just get the dealer to do all the mods you want done to your truck. It will remain under warranty and have the mods you want. The dealers here in town do it all the time yeah it costs alot but if you really want to keep that warranty this is prob the only way to go.
That was my plan - and then GM took away their dealership so now I'm stuck with a dealer that's nowhere near as cooperative.


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