Amsoil syn blend 0w20 4.4k mi; Sierra 2014 6.2L 105.7k mi

That John dude

That John dude

Joined
Jan 12, 2021
Messages
247
Location
Oklahoma
This oil was ran for 4,377 miles with an acdelco pf63 filter.
Some more than normal (to me) idle time, mostly around town, but got some highway miles in probably 65/35.
Amsoil syn blend 0w20/ pf63 went back in/on.
Also did the afm/dod delete @ 99,6xx miles, so silicon is still around.
Truck had 105,691 miles at this sample time

IMG_4118.webp
 
Last edited by a moderator:
Thanks for providing the Si notes from deleting the AFM/Cylinder deactivation. Have you tested before? Just wondering if the Fe is possibly above average from the recent work. I didn't know Amsoil blended a "Syn Blend" & figured they got to the top by "100% synthetic"? Anyways, possibly another conversation.
 
fantastic said:
Thanks for providing the Si notes from deleting the AFM/Cylinder deactivation. Have you tested before? Just wondering if the Fe is possibly above average from the recent work. I didn't know Amsoil blended a "Syn Blend" & figured they got to the top by "100% synthetic"? Anyways, possibly another conversation.
Click to expand...
I do have one uoa from before my first lifter failure, which would make it before the afm delete. I can post it and y’all can look. I’m still learning how to read these tbh.
 
That John dude said:
I do have one uoa from before my first lifter failure, which would make it before the afm delete. I can post it and y’all can look. I’m still learning how to read these tbh.
Click to expand...
Did you need to replace the lifters the with this failure?
Did you replace the cam while you were doing it, or was there any damage to the cam?
My son had to replace the lifters. They said the cam was good.

I sent a sample after they completed work & the Chromium levels were high.

I was hoping it was some wear from the new lifters, but sounds like chromium is ring material. Not sure if they checked compression after it was all done.
 
cdlamb said:
Did you need to replace the lifters the with this failure?
Did you replace the cam while you were doing it, or was there any damage to the cam?
My son had to replace the lifters. They said the cam was good.

I sent a sample after they completed work & the Chromium levels were high.

I was hoping it was some wear from the new lifters, but sounds like chromium is ring material. Not sure if they checked compression after it was all done.
Click to expand...
Yes I did a full mechanical delete. Lifters, and cam were replaced.
That John dude

Thread '2014 Sierra 6.2 afm/dod delete'

Well after dropping my 3rd lifter in 9 months I made the decision to do a BTR delete kit (BTR L86 delete cam) with GM performance LS7 lifters. It’s definitely time consuming, but shouldn’t have anymore issues now. Here’s a few pics of the progress.
I replaced almost everything I could while I was there. Oil pump, water pump, thermostat, rear main, transmission filter, belts, and so on. If you can name it, then I probably replaced it.
It’s back in my driveway today.
Just because I know I’ll get asked
Filter: Acdelco PF63
Oil : dealer bulk 0w20 for the first 500 miles.
Just wanted to...
  • Like
There’s the run down.
 
That John dude said:
Yes I did a full mechanical delete. Lifters, and cam were replaced.
That John dude

Thread '2014 Sierra 6.2 afm/dod delete'

Well after dropping my 3rd lifter in 9 months I made the decision to do a BTR delete kit (BTR L86 delete cam) with GM performance LS7 lifters. It’s definitely time consuming, but shouldn’t have anymore issues now. Here’s a few pics of the progress.
I replaced almost everything I could while I was there. Oil pump, water pump, thermostat, rear main, transmission filter, belts, and so on. If you can name it, then I probably replaced it.
It’s back in my driveway today.
Just because I know I’ll get asked
Filter: Acdelco PF63
Oil : dealer bulk 0w20 for the first 500 miles.
Just wanted to...
  • Like
There’s the run down.
Click to expand...
Self repair or a mechanics shop?
 
fantastic said:
Thanks! The 3.2% fuel dilution is getting up there. The 30 grade you used here would give you a buffer from viscosity decrease, from fuel, for the mileage you're putting on the oil. Yes, this UOA is showing less wear metals but only two samples is far from conclusive. Certainly appreciate you sharing.
Click to expand...
Makes sense. Winter time I idle more than I should. The truck will have one more amsoil syn blend 0w20 uoa, then it’s getting 5w30 the remainder of its life.
 
That John dude said:
Honestly wasn’t sure what to expect, but that’s why I’m doing this.
Click to expand...
Don’t get me wrong, we appreciate your contribution. My comments are strictly focused on how the lube performed in this use/case scenario. I don’t think anyone can convince me that this oil can perform better than $15/5qt Kirkland or even a regular syn blend like chevron supreme
 
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