High Mileage Club for the 5.3 and 6.2

[The Raven]

8 minutes ago, KARNUT said:

I advised my brother in law not to buy a 2013 Tahoe with cylinder deactivation. He got a good deal and bought it. I advised him to change the oil no later than 5K miles. He runs at least 300K miles. He’s at 135K miles now. There’re going to rack up miles in the next 6 months before retirement. He wants to move back to Texas or Oklahoma. He’s currently in Slidell. It’s going to get interesting.

 

I had a 2010 Tahoe Z71 (5.3l w/AFM) that I put 210k miles on.  I changed the oil every 7500 miles with Mobil 1 5w-30.  The new owner is a friend of mine so I can see the trucks future.  It's at 225k now, still no issues.  Before I got rid of it, it was experiencing what appeared to be a low oil pressure issue that (after two months of troubleshooting) turned out to be two bad sensors in a row - but during those two months the dealer opened up the engine because they thought it was the oil pump - and they were absolutely blown away by how perfect that thing was...they said the internals are like new.  One tech and one service writer both asked what I would want for it - unfortunately I had already promised it to a friend.

 

Based on the extensive data i've collected on the lifter issue, it has nothing to do with oil change intervals (obviously excluding negligently-long intervals).  It's an oil-starvation problem, not an oil-quality problem.

Edited April 25, 2024 by The Raven

[Grumpy Bear]

5 minutes ago, KARNUT said:

Evan Williams Honey Whisky is mine. Margaritas when I play cards. Bloody Mary if I get hungry playing cards.

 

Man's got'a eat, right?

[Grumpy Bear]

4 minutes ago, The Raven said:

Based on the extensive data i've collected on the lifter issue, it has nothing to do with oil change intervals (obviously excluding negligently-long intervals).  It's an oil-starvation problem, not an oil-quality problem.

 

Not going in, but perhaps coming out. Foaming has the same effect as starvation. Fuel dilution is a viscosity breaker, right? Fuel enhances foam. Just thinking out loud.  When oil becomes compressible hydraulic function goes sideways.

[KARNUT]

6 minutes ago, The Raven said:

 

I had a 2010 Tahoe Z71 (5.3l w/AFM) that I put 210k miles on.  I changed the oil every 7500 miles with Mobil 1 5w-30.  The new owner is a friend of mine so I can see the trucks future.  It's at 225k now, still no issues.  Before I got rid of it, it was experiencing what appeared to be a low oil pressure issue that (after two months of troubleshooting) turned out to be two bad sensors in a row - but during those two months the dealer opened up the engine because they thought it was the oil pump - and they were absolutely blown away by how perfect that thing was...they said the internals are like new.  One tech and one service writer both asked what I would want for it - unfortunately I had already promised it to a friend.

 

Based on the extensive data i've collected on the lifter issue, it has nothing to do with oil change intervals (obviously excluding negligently-long intervals).  It's an oil-starvation problem, not an oil-quality problem.

Well, as a onetime Amsoil dealer and user and extended user. I agree in some cases. With cylinder deactivation, turbo charging and DI engines. And a person called Grumpy and his posting. As well as my change in driving miles with retirement. 5K oil change intervals is my max. I might add. You’d be hard pressed to find an individual who has more experience with oil, oil brands than me. I sold equipment for 40 years. That may not make me an expert, but I’m experience.

[The Raven]

34 minutes ago, KARNUT said:

Well, as a onetime Amsoil dealer and user and extended user. I agree in some cases. With cylinder deactivation, turbo charging and DI engines. And a person called Grumpy and his posting. As well as my change in driving miles with retirement. 5K oil change intervals is my max. I might add. You’d be hard pressed to find an individual who has more experience with oil, oil brands than me. I sold equipment for 40 years. That may not make me an expert, but I’m experience.

 

Well you don't know what happens with higher-than-5k-mile oil changes if you don't go higher than 5k miles between changes.

[The Raven]

41 minutes ago, Grumpy Bear said:

 

Not going in, but perhaps coming out. Foaming has the same effect as starvation. Fuel dilution is a viscosity breaker, right? Fuel enhances foam. Just thinking out loud.  When oil becomes compressible hydraulic function goes sideways.

 

If you have fuel dilution happening to the point where it significantly changes the viscosity-related properties of your oil, you are going to have a lot of other issues before you have lifter issues.

 

But you aren't wrong per se.

[KARNUT]

6 minutes ago, The Raven said:

 

Well you don't know what happens with higher-than-5k-mile oil changes if you don't go higher than 5k miles between changes.

No, I went down to 5K oil changes. I used to run 25K miles on Amsoil. 12-15K on my trailblazer ss. I was an extended guy. I bought all in. I changed with cylinder deactivation. Then turbo charging. My Genesis dealer recommended running the extreme service schedule. I joined this website and people pointed out to me that these modern engines require more frequent maintenance. So if I spend an extra 100$ a year shorting me oil change intervals no big deal. Especially if I want to run 200K miles. Then you add people posting their oil analysis. It took me awhile to be convinced. I was giving the same argument as you 10 years ago. Oil is cheap and I’m not trading in before the warranty is up anymore so yeah I’m going extreme on maintenance.

[The Raven]

36 minutes ago, KARNUT said:

No, I went down to 5K oil changes. I used to run 25K miles on Amsoil. 12-15K on my trailblazer ss. I was an extended guy. I bought all in. I changed with cylinder deactivation. Then turbo charging. My Genesis dealer recommended running the extreme service schedule. I joined this website and people pointed out to me that these modern engines require more frequent maintenance. So if I spend an extra 100$ a year shorting me oil change intervals no big deal. Especially if I want to run 200K miles. Then you add people posting their oil analysis. It took me awhile to be convinced. I was giving the same argument as you 10 years ago. Oil is cheap and I’m not trading in before the warranty is up anymore so yeah I’m going extreme on maintenance.

 

Ah that makes more sense...and yeah 12k+ is too much for me too.  But I don't have an "argument" because i'm not doing "extended" intervals.  I'm at 7500 miles which is just average now...the 90's were 30 years ago..

[KARNUT]

3 minutes ago, The Raven said:

 

Ah that makes more sense...and yeah 12k+ is too much for me too.  But I don't have an "argument" because i'm not doing "extended" intervals.  I'm at 7500 miles which is just average now...the 90's were 30 years ago..

12-15K oil changes was recommended on mobile one on the Trailblazer SS. It was in 2006. Now Honda, Toyota VW are still recommending extended. Yes the 90s is 30 years ago. Engines have more going on. You want to go 7500 miles that’s cool 

[The Raven]

11 minutes ago, KARNUT said:

12-15K oil changes was recommended on mobile one on the Trailblazer SS. It was in 2006. Now Honda, Toyota VW are still recommending extended. Yes the 90s is 30 years ago. Engines have more going on. You want to go 7500 miles that’s cool 

 

You definitely CAN go with extended oil change intervals on good full synthetics.  It's very unlikely that those intervals will make any measurable difference in engine longevity.  Yes engines do have a lot more going on these days, but the materials they are built from and the processes that build them have improved at a rate much faster than that.  Despite all this, I sleep better at night sticking with 7500 mile intervals (as I imagine you do with your intervals) and i'm not afraid to admit that that's probably all it is - comfort. 

 

I knew a girl in college that went 45k once without an oil change - on basic Wal-Mart juice no less.  She only did that once, as that next oil change cost her almost $5k.

Edited April 25, 2024 by The Raven

[lennybg]

2 hours ago, Grumpy Bear said:

 

I was asking literally. The trucks oil and OCI not yours 

 

My daily lube is Evan WIlliams black label. My Sunday desert is Woodford Reserve Double Oaked. 

oHHHH...LoL

 I change it no more than 5K, Mobile 1..

I never let the oil change monitor drop below 40%

[David 2018 Chevsil]

My Silverado is a 2018 crew cab with a 5.3 6spd transmission and 155,000 miles I haven’t any problem with lifters or transmission. I experienced the “ Open and close driver’s side window” message for a bad ground wire connection.

Edited June 21, 2024 by David 2018 Chevsil