I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
GM 5.3 V8 normal oil use?
- Thread starter Camprunner
- Start date
- Status
Excessive in my book.
Last edited:
Originally Posted By: Camprunner
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
GM will tell you that amount is not excessive. Seems as if the 5.3 motors with AFM are prone to oil usage. GM is aware of the problem, and has thrown a few "fixes" at it. However, they have to determine that your oil use is excessive-per their definition. Lot's of reading on this topic all across the net. My '11 isn't using, but if it starts sucking the oil, I'll be off to blue oval land.
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
GM will tell you that amount is not excessive. Seems as if the 5.3 motors with AFM are prone to oil usage. GM is aware of the problem, and has thrown a few "fixes" at it. However, they have to determine that your oil use is excessive-per their definition. Lot's of reading on this topic all across the net. My '11 isn't using, but if it starts sucking the oil, I'll be off to blue oval land.
Last edited:
Originally Posted By: Eddie
Excessive in my book.
Mine too.
Excessive in my book.
Mine too.
Google search 5.3 AFM oil consumption. It is a common problem, I understand why you are asking why the 5.3 AFM has this problem and Chrysler's 5.7 MDS engines are not. But Chrysler engines are not having this problem on the scale GM is.
Originally Posted By: Camprunner
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
Simple answer, yes it is. I have heard of this and it is disturbingly common.
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
Simple answer, yes it is. I have heard of this and it is disturbingly common.
1.5 to 2 quarts over 7,000 miles? That's very little consumption. GM won't look at it unless you're using a quart every 1,000 miles. You're using a quart every 3,000 or 4,000 miles. Not bad.
A co-worker had a 2009 Chevrolet 1500 with the 5.3L and his ran through oil pretty quick. I think he used a quart every 2,000 miles or so. It was getting worse by the time he turned 80,000 miles, and just recently traded it for a new F-150 with the EcoBooost. So far, the Ford hasn't used any oil, but he's watching it close.
A co-worker had a 2009 Chevrolet 1500 with the 5.3L and his ran through oil pretty quick. I think he used a quart every 2,000 miles or so. It was getting worse by the time he turned 80,000 miles, and just recently traded it for a new F-150 with the EcoBooost. So far, the Ford hasn't used any oil, but he's watching it close.
Yes this is a excessive amount of oil to burn, this problem is well known to GM. GM has released a few TSB's addressing this problem but the "fix" is not always 100% The oil burning is caused by frozen oil rings on the pistons, they claim it is caused by excessive oil spray in the crankcase which puts to much oil on the cylinder walls below the piston. If you search for TSB's on the net you should find it or have your repair shop find it in their information system.
Originally Posted By: Camprunner
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
I had a 2007 Silverado with the 5.3L( w/ AFM )and I never used a drop over 5K intervals running Royal Purple 5W30. As others have said however it seems to be a common issue with the 5.3L's w/ AFM. GM will say normal but I agree with the others it is not. I would have raised holy caine if mine had done that.
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
I had a 2007 Silverado with the 5.3L( w/ AFM )and I never used a drop over 5K intervals running Royal Purple 5W30. As others have said however it seems to be a common issue with the 5.3L's w/ AFM. GM will say normal but I agree with the others it is not. I would have raised holy caine if mine had done that.
Last edited:
"• Some of the aluminum engines with
AFM have experienced oil consumption,
too. GM says that the oil spray that is discharged
from the AFM pressure relief
valve in the crankcase may result in carbon
deposits in the ring grooves that stick the
rings and cause oil consumption. They
have modified the rocker cover to change
the calibration for the PCV for some
applications, but the real fix is the installation
of a shield (p/n 12639759) over the
AFM relief valve to deflect the oil down
into the pan instead of allowing it to hit
the crank that throws it up on the cylinder
walls."
From this article:
http://www.enginebuildermag.com/Content/Site302/Articles/03_01_2012/986163348GMGENI_00000051561.pdf
I wouldn't hesitate to treat the engine with Auto-Rx to clean up the rings and pistons.
AFM have experienced oil consumption,
too. GM says that the oil spray that is discharged
from the AFM pressure relief
valve in the crankcase may result in carbon
deposits in the ring grooves that stick the
rings and cause oil consumption. They
have modified the rocker cover to change
the calibration for the PCV for some
applications, but the real fix is the installation
of a shield (p/n 12639759) over the
AFM relief valve to deflect the oil down
into the pan instead of allowing it to hit
the crank that throws it up on the cylinder
walls."
From this article:
http://www.enginebuildermag.com/Content/Site302/Articles/03_01_2012/986163348GMGENI_00000051561.pdf
I wouldn't hesitate to treat the engine with Auto-Rx to clean up the rings and pistons.
Often times when 1qt/3000 miles consumption is mentioned here on this site there are several post stating that it is not anything excessive. Here we have .75 to 1 quart every 3500 miles so in following with the general consensus that I have read dozens of times previosuly on this site, I dont not personally feel that is an excessive amount of consumption. I would however wish it was better and would start to look for some options.
Thank You INDYMAC. Great article!
Originally Posted By: NHHEMI
Originally Posted By: Camprunner
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
I had a 2007 Silverado with the 5.3L( w/ AFM )and I never used a drop over 5K intervals running Royal Purple 5W30. As others have said however it seems to be a common issue with the 5.3L's w/ AFM. GM will say normal but I agree with the others it is not. I would have raised holy caine if mine had done that.
I believe you did not have this problem because from reading your comments, I believe you like to properly break a engine in and periodically properly let the engine stretch its legs . This is my theory on this topic.
Originally Posted By: Camprunner
I have an "07" Chevy Silverado with a 5.3 V8 with about 50,000 miles on the clock I have run PP 5-30 for most of it's life. The truck runs great but consumes about 1.5 to 2 quarts of oil within my oil change time of 7,000 miles and has done so since about 20,000 miles and I was wondering is this normal for the 5.3? Is 1.5 to 2 quarts between changes excessive?
I had a 2007 Silverado with the 5.3L( w/ AFM )and I never used a drop over 5K intervals running Royal Purple 5W30. As others have said however it seems to be a common issue with the 5.3L's w/ AFM. GM will say normal but I agree with the others it is not. I would have raised holy caine if mine had done that.
I believe you did not have this problem because from reading your comments, I believe you like to properly break a engine in and periodically properly let the engine stretch its legs . This is my theory on this topic.
It is really true that too easy of a break in can cause oil consumption. Many owners baby their cars when new and have these issues.
I have a 2011 Silverado 5.3 with the AFM. My most recent change before I deployed was with Pennz Plat....engine seemed a bit louder with the Plat but I haven't noticed any consumption. I'll be going back to Factory fill next change...but in any event I'll be turning off the AFM...when it drops into 4 cyl it is noticeable
Goose
Goose
- Status
