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I'm about to do my first oil change on my C7. How many quarts of oil does the non Z51 take.
 

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OPBB, please check your Owners Manual. The correct amount of oil for a non-Z51 when you change it and the filter is 7 quarts.
 
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And don't put all 7 in at first. Put 6 and a 1/4 or 6 and a 1/2 in, and then add more slowly after properly checking the oil level. The important reason for this is that maybe not all 7 fully drained out when changing the old oil out.
 
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I drained 5.5 quarts out including the swill in the filter (base C7). Added 6 quarts with AC Delco 64 filter, the oil at the half point on my stick......and I'm still sucking oil into the catch can.
 

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a non z51 does not take 9.3 - it takes 7 - do you have a owner's manual?

page 12-2
That's the old manual page. The new page (shown below) still correctly lists 7 quarts (w/o z51) but has the corrected value of 9.8 q for z51.
IMG_20140611_191909.jpg
 
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I need a little help here. I'm reading threads on catch cans and separator and I'm wondering why I'd need these in a 70k plus vehicle. And if I need them, why doesn't gm put them in the car from the get go. I'm neither a "gear head" or "buff head" (a new term for me) I've never had a true high performance vehicle before but in about 3 weeks I'll have a z51 in my garage. So should I be ordering a catch can and separator along with my mud flaps and curb alert? And if I should but don't, what sort of risk am I taking? Thanks in advance
 

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Oh boy, here we go.

The best analogy I can give to you is some people eat certain foods, but others will not eat it because they are concerned for long-term health benefits. Still others eat whatever they want and don't give it a second thought.

There is no way in the world to get people to agree on what foods should not be consumed. Forget about it. You can never get one clear answer on that.

Will oil mist in the air intake at the rate of what is being caught presently by catch cans be bad for your engine? Some will say yes, some will say no. Decide for yourself what you want to do.
 

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Oh boy, here we go.

The best analogy I can give to you is some people eat certain foods, but others will not eat it because they are concerned for long-term health benefits. Others eat whatever they want and don't give it a second thought.

There is no way in the world to get people to agree on what foods should not be consumed. Forget about it. You can never get one clear answer on that.

Will oil mist in the air intake at the rate of what is being caught presently by catch cans be bad for your engine? Some will say yes, some will say no. Decide for yourself what you want to do.
Thanks. Based on your analogy I'll be leaving it the way gm engineers designed it (and hope I don't regret it in a few years). Out of curiosity, do you have either or both?
 

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Thanks. Based on your analogy I'll be leaving it the way gm engineers designed it (and hope I don't regret it in a few years). Out of curiosity, do you have either or both?
I don't have the car yet. I'm waiting on a Z06. My plan, at the moment, is to get both. I also am very picky about what I eat. The thought process for me is the same for both cases.
 

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I don't have the car yet. I'm waiting on a Z06. My plan, at the moment, is to get both. I also am very picky about what I eat. The thought process for me is the same for both cases.

And I'm on the other end, I will go with the way GM designed it.
 

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Organic vs Genetically modified! lol. I'll go with the organic please. its 300$ just add it.
 
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This is such a strange question to ask. But I have the same question. So I searched the forum: So many different responses to the same question for the same car and engine type. So I took it to Chevy, had them change the oil, and they said that they put in 10 quarts. I got the $100 invoice for the change and it says 10 quarts on the invoice. So I guess I am going with 10 quarts. But they said to make sure I pull BOTH drain plugs (not just the one up front) and that I allow it about 20 minutes to drain. Then they said to put in the new oil slowly, allowing in 10 minutes to drain the fill tank before measuring it. They said to heat the engine up, turn the car off, come back in 5-7 minutes, and then measure the oil level with the dipstick. Then add only what is needed to fill it up to, but not over, the fill line.
They said to let the oil drain for at least 5 minutes after I take off the oil filter also.

Maybe this level of waiting is over-kill. I am not sure, but I am going to follow these recommendations to the letter in my Z51.
Oh, and I see the super-charger has to have its own oil change as well, but not nearly as often as the engine oil.

Does this sound right to the forum dudes and dudettes?

Nick
 

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This is such a strange question to ask. But I have the same question. So I searched the forum: So many different responses to the same question for the same car and engine type. So I took it to Chevy, had them change the oil, and they said that they put in 10 quarts. I got the $100 invoice for the change and it says 10 quarts on the invoice. So I guess I am going with 10 quarts. But they said to make sure I pull BOTH drain plugs (not just the one up front) and that I allow it about 20 minutes to drain. Then they said to put in the new oil slowly, allowing in 10 minutes to drain the fill tank before measuring it. They said to heat the engine up, turn the car off, come back in 5-7 minutes, and then measure the oil level with the dipstick. Then add only what is needed to fill it up to, but not over, the fill line.
They said to let the oil drain for at least 5 minutes after I take off the oil filter also.

Maybe this level of waiting is over-kill. I am not sure, but I am going to follow these recommendations to the letter in my Z51.
Oh, and I see the super-charger has to have its own oil change as well, but not nearly as often as the engine oil.

Does this sound right to the forum dudes and dudettes?

Nick
Hi Nick,

No, it does not sound right for your Z51.

The first thing is that 10 quarts is too much.

The second thing is that for your dry sump, less oil is better than too much oil. The whole point of the tank on the dry sump is to keep oil available to pick up even in hard cornering. So, even if you are low of oil with the dry sump, you will be able to pick up oil in the tank.

Why is it such a big deal to NEVER overfill the tank? An overfill condition can result in oil going from the tank to the air intake. That can cause a whole mess of issues from a soaked air box and filter, leaking out all over the place, could coat the MAF sensor if it goes that far, and, heaven forbid, if enough of the oil ever got down past your intake valves into your cylinder, well, fluid is essentially incompressible... Bye bye engine...

This brings me to point #3: leave your oil closer to the bottom of the hash marks than the top of the hash marks. It is safer that way.

As for how to check the oil, do what is indicated by GM: make sure the oil is hot (hotter than the indicated temperature - I make sure it is even hotter than the minimum required temperature), turn the car off, and wait five minutes to check it. If you wait too long, the reading will be too low, and you might overfill it (which is absolutely what you want to avoid).

There are a ton of threads here on the forum for this.

During the pre-delivery inspection on my car, I found that the oil was overfilled from the factory (slightly over the top of the hash marks). I made the PDI guy suction enough out that I was below the middle of the hash marks. He said, "I would rather have it too high than too low." I said, "No, it absolutely will not be that way. Take more out, and don't stop until I say it is okay." He, of course, complied.
 

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Hey Nick, you mentioned changing the oil in the supercharger. No offense but if you have a Z51, you do not have a supercharged engine. (Only in the Z06)
 

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Hey Nick, you mentioned changing the oil in the supercharger. No offense but if you have a Z51, you do not have a supercharged engine. (Only in the Z06)
nor do you have oil in it...LOL
 
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