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Blew 6.2, gm denying warranty

hectik

By hectik
in Engines & Drivetrain

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njk4o5 Enthusiast

njk4o5

Posted
Posted

pretty sure every GM v8 has burned oil since like 1999 and GM says it is "normal" to burn a quart of oil between oil change intervals but somehow still passes emissions?

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Nitrousbird Enthusiast

Nitrousbird

Posted
Posted
On 10/15/2019 at 2:39 PM, njk4o5 said:

pretty sure every GM v8 has burned oil since like 1999 and GM says it is "normal" to burn a quart of oil between oil change intervals but somehow still passes emissions?

I'm on my 4th GM V8 since the 1999 model year.  LM7, sold to a friend at 180k, no oil buring.  L92 sold at 160k, no oil burning.  LS1 in my boat sees some HARD use and I never add oil.  L86 in my truck doesn't have many miles but haven't had the level on the dipstick go down yet.  So that represents 2 GEN-III, 1 GEN-IV and 1 GEN-V GM V8 without oil consumption issues.

txab Senior Enthusiast

txab

Posted
Posted

Crickets from OP for almost 3 weeks, even though he's been around the site. Guess he has nothing to add.........

Doublebase Enthusiast

Doublebase

Posted
Posted
On 10/3/2019 at 11:22 AM, KARNUT said:


Are you talking about these wonderful new cylinder deactivation engines? It not unusual for engines not to use oil prior to those. I’ve had countless new vehicles. I would be surprised to see them use oil. I have 5 now only one uses oil. It’s stroked and blown, the rest not a drop. Ones 18 years old, 15, 8, and 2.


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I am talking about the 5.3 with cylinder deactivation. Yes. Before that? Let's say a port injected engine, no deactivation? Yeah I agree to a certain extent, those did have a lot less oil consumption.

 

I'll tell you what though...I'm not saying these new 5.3's are bad engines...I own one, I'm getting almost 26 mpg in it (unbelievable) and all of those 5.3's that i see on a semi regular basis are doing just fine DESPITE using some oil between changes, so I think the fuel economy appears to be a good trade off. And I am seeing some of these engines now with some high mileage on them - all in all I'd say they are pretty trouble free - just change your oil, take care of it, don't beat on it and make sure you check that oil level once in the middle of that oil change interval and I think you'll do pretty well with one of these things...a lot better than with a Ford Eco boost.  

KARNUT Senior Enthusiast

KARNUT

Posted
Posted
I am talking about the 5.3 with cylinder deactivation. Yes. Before that? Let's say a port injected engine, no deactivation? Yeah I agree to a certain extent, those did have a lot less oil consumption.
 
I'll tell you what though...I'm not saying these new 5.3's are bad engines...I own one, I'm getting almost 26 mpg in it (unbelievable) and all of those 5.3's that i see on a semi regular basis are doing just fine DESPITE using some oil between changes, so I think the fuel economy appears to be a good trade off. And I am seeing some of these engines now with some high mileage on them - all in all I'd say they are pretty trouble free - just change your oil, take care of it, don't beat on it and make sure you check that oil level once in the middle of that oil change interval and I think you'll do pretty well with one of these things...a lot better than with a Ford Eco boost.  

I would definitely trade off losing a few miles per gallon than having more moving parts and ad ons with cylinder deactivation. More stuff more potential for failure. You have to change your oil more often. And in my testing at 72 mph, I saw no mileage increase with cylinder deactivation on or off. The big controversy presently, brake failure is tied to cylinder deactivation engines. Wonderful.


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Z45 Senior Enthusiast

Z45

Posted
Posted

I'm getting almost 26 mpg in it (unbelievable)

It is, better check your math, no way a truck gets this kind on mileage.   You need to average it over thousands of miles to get a true picture, not cherry pick numbers. 

dieselfan1 Senior Enthusiast

dieselfan1

Posted
Posted
1 hour ago, elcamino said:

 

 

It is, better check your math, no way a truck gets this kind on mileage.   You need to average it over thousands of miles to get a true picture, not cherry pick numbers. 

There's always that guy that gets way better mileage than everyone else.?

Doublebase Enthusiast

Doublebase

Posted
Posted
4 hours ago, elcamino said:

 

 

It is, better check your math, no way a truck gets this kind on mileage.   You need to average it over thousands of miles to get a true picture, not cherry pick numbers. 

24.4 lifetime 39,000 miles.

 

Now that’s because I drive through four months of cold New England winters where I am or else I'd be averaging closer to 26. During the warm months (above 45 degrees). Now during the colder months it really takes a toll on my overall fuel mileage...some weeks in the winter I'm averaging 22-23. I  drive 500-600 miles a week, mostly highway, no towing, 68-70 mph on the highway. Stock 17 inch tires and rims.   

Doublebase Enthusiast

Doublebase

Posted
Posted
5 hours ago, KARNUT said:


I would definitely trade off losing a few miles per gallon than having more moving parts and ad ons with cylinder deactivation. More stuff more potential for failure. You have to change your oil more often. And in my testing at 72 mph, I saw no mileage increase with cylinder deactivation on or off. The big controversy presently, brake failure is tied to cylinder deactivation engines. Wonderful.


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It depends on how much fuel savings one is actually getting and all I can say is that I'm averaging almost what my wife is averaging in her 4 cylinder Honda CRV. That's outrageous to me and worth a headache down the road (if that even happens). I change my oil every 5,000 miles and add 3/4's of a quart between changes. No big deal to me. 

KARNUT Senior Enthusiast

KARNUT

Posted
Posted
It depends on how much fuel savings one is actually getting and all I can say is that I'm averaging almost what my wife is averaging in her 4 cylinder Honda CRV. That's outrageous to me and worth a headache down the road (if that even happens). I change my oil every 5,000 miles and add 3/4's of a quart between changes. No big deal to me. 

My Camry never gets less than 30 at 75 mph it gets 33 MPG. My oil gets changed every 8-10K miles. My wife’s 01 Acura type r got 24 mpg hovering around 4K at 70. Something wrong with your Honda.


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Doublebase Enthusiast

Doublebase

Posted
Posted
2 hours ago, KARNUT said:


My Camry never gets less than 30 at 75 mph it gets 33 MPG. My oil gets changed every 8-10K miles. My wife’s 01 Acura type r got 24 mpg hovering around 4K at 70. Something wrong with your Honda.


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I wouldn’t worry about my Honda too much, seeing as you don’t understand chevy’s. 

KARNUT Senior Enthusiast

KARNUT

Posted
Posted
I wouldn’t worry about my Honda too much, seeing as you don’t understand chevy’s. 

I’ve owned many Chevys from the sixties till now. Raced them built them. I would never claim a Chevy V-8 would do as well on gas as a civic. I got a type r and a modified Chevy in my garage among others. fc54730948f61c064c24029295dca4b7.jpg I understand Chevys.


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Doublebase Enthusiast

Doublebase

Posted
Posted
18 minutes ago, KARNUT said:


I’ve owned many Chevys from the sixties till now. Raced them built them. I would never claim a Chevy V-8 would do as well on gas as a civic. I got a type r and a modified Chevy in my garage among others. fc54730948f61c064c24029295dca4b7.jpg I understand Chevys.


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I said Honda CRV, it’s a small suv. I didn’t say civic.

KARNUT Senior Enthusiast

KARNUT

Posted
Posted
I said Honda CRV, it’s a small suv. I didn’t say civic.

My father in law and mother in law each have one of those. Their divorced and live in separate states. Nice vehicles. Drove the hell out one a weekend ago. Didn’t check the gas mileage tho.


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Doublebase Enthusiast

Doublebase

Posted
Posted
1 hour ago, KARNUT said:


My father in law and mother in law each have one of those. Their divorced and live in separate states. Nice vehicles. Drove the hell out one a weekend ago. Didn’t check the gas mileage tho.


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Pre direct injection they actually weren’t all that great...24-26 if you babies it. Their first direct injection CRV’s were getting 29-33. Their next generation CRV direct injection/smaller engine/turbo, went up a bit...should be able to get 30-36. 
 

Not exactly my favorite vehicles on the road...little loud, little tiny. Not terrible or anything but just not that great. We’re getting rid of ours, but it’s been absolutely flawless is reliability. Done nothing to it in 139,000 miles.

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