VOA of amsoil z rod 10w40.

[Jw95]

voa of amsoil z rod 10w40.

 

[fantastic]

Looks like a very good Amsoil product for older engines. Thanks for testing this. @himemsys

 

[Jw95]

Looks like a very good Amsoil product for older engines. Thanks for testing this. @himemsys

I’m currently also doing testing on it in a ls lq4. Will sample the second oci then I’ll run SS and sample the second time as well just for curiosity on how they’ll differ in this engine.

You’re welcome tho.

 

[Glenda W.]

Very nice! Thank you
A favorite among muscle car enthusiasts.

 

[fantastic]

I’m currently also doing testing on it in a ls lq4. Will sample the second oci then I’ll run SS and sample the second time as well just for curiosity on how they’ll differ in this engine.

You’re welcome tho.

Is SS around the same price? Just curious

 

[Jw95]

Is SS around the same price? Just curious

Yes. They are both very close.

 

[fantastic]

Yes. They are both very close.

After your two Z-Rod ODI's are you planning to stay with 40 or 30 grade on the SS?

 

[ARCOgraphite]

Making Tons O' high rpm power (and using it always) where you want a 40?

 

[ARCOgraphite]

Is SS around the same price? Just curious

Look at the VOA oxidation value. It appears to have some SS DNA

 

[johnnydc]

voa of amsoil z rod 10w40.

View attachment 270644

Is an oxidation value of 35 considered good? I never can get the numbers straight.

 

[Jw95]

After your two Z-Rod ODI's are you planning to stay with 40 or 30 grade on the SS?

40. I’ve been running a 40 for the past 150k miles.

 

[Jw95]

Is an oxidation value of 35 considered good? I never can get the numbers straight.

Yes. Good bit of esters in there.

 

[ARCOgraphite]

40. I’ve been running a 40 for the past 150k miles.

Shop truck big LS has 174K on 0W20. Runs new but not beat.

 

[Jw95]

What year is it? Because if it calls for 0w20 it’s more than likely a LT motor which gm started in 2014. I haven’t heard of a LS calling for 0w20.

 

[ARCOgraphite]

What year is it? Because if it calls for 0w20 it’s more than likely a LT motor which gm started in 2014. I haven’t heard of a LS calling for 0w20.

Yep J code 2015 GMC

 

[fantastic]

Shop truck big LS has 174K on 0W20. Runs new but not beat.

Can I ask what is the idea behind a 20 grade in a work truck? I take it from OP's comments that is the grade spec'd for that engine class?

 

[Brian123]

Yes. Good bit of esters in there.

Does the Higher the Oxidation Value mean there are more Esters? Is the Oxidation Value something we should look at 1st in a VOA?

 

[Jw95]

Does the Higher the Oxidation Value mean there are more Esters? Is the Oxidation Value something we should look at 1st in a VOA?

To my knowledge yes. And oxidation value is important to know regardless of the number to help be a key indicator in a uoa from the oil breaking down and oxidation thickening.

 

[Jw95]

Can I ask what is the idea behind a 20 grade in a work truck? I take it from OP's comments that is the grade spec'd for that engine class?

Yes it is. Code J in the pick up truck are the L86 6.2 ecotec engine which is a LT platform engine. Not an LS. Everything about that engine is completely different from a LS platform. They are also spec to run a 0w20 viscosity.

 

[fantastic]

Yes it is. Code J in the pick up truck are the L86 6.2 ecotec engine which is a LT platform engine. Not an LS. Everything about that engine is completely different from a LS platform. They are also spec to run a 0w20 viscosity.

Thank you for the explanation. I've not kept up with GM's oil requirements but I know they obviously favor MPG.