2022 Chevy 2.7L Silverado Burning Oil. Diagnosis?

[Silverado12]

Man, if only there was a website where people submitted oil samples for testing to see what level of Calcium there is in a specific motor oil.

You guys should go check out BITOG, and see if they have the Valvoline R&P 5W-30 listed in the virgin oil samples yet.

F

Thread 'Valvoline Restore & Protect 5w-30 VOA'

Apr 21, 2025

Valvoline Restore & Protect 5w-30
Manufactured in 2024
API SP
ILSAC GF-6A

I mailed the sample to Oil Analyzers Indianapolis on Monday and received the report by Saturday. On my submission form I did not include product brand or information. Only product viscosity grade.

• Furyus67
• Replies: 21
• Forum: Virgin Oil Analysis - PCMO/HDEO

• 
• 

Good luck, and you should really enjoy BITOG, because those people really love to know as much as they can about oil.

"ILSAC standards are constantly evolving and improving to meet changing industry demands. The popularization of turbocharged engines among Original Equipment Manufacturers (OEMs) led to a new focus on turbocharger-specific standards for GF-6. The primary purpose of GF-6 is to combat problems with LSPI, a common issue with turbocharged engines. As in the 2018 upgrade of API SN to API SN Plus, the ILSAC GF-6 standards also require added protection against the harmful effects of LSPI in today’s modern turbocharged engines."
This a quote taken from Mobil's website. GF-6 specs say specifically that it is formulated to prevent LSPI but yet there isn't a DEXOS spec on the bottle. Restore and Protect is GF-6 oil. Maybe since you know so much you can elaborate?

 

[THORROMIG]

Surely a quart every 1000 mile leak would be putting oil on the ground or making visible smoke if it's dripping directly onto an exhaust manifold?

Exactly!!!!

 

[MParr]

I would be looking for an oil leak around the turbocharger.

 

[Donald]

If smelling oil through the vents, wouldn't that be more of an indicator of an oil leak dripping onto the exhaust (manifold).

Exactly what I was thinking.

 

[BrianF]

Maybe pop off some charge air tube's and see if oil is being injested that way.

 

[Alex_V]

FWIW - I recently did valve covers on a early-Ecoboost F150 (2010?) that would generate such a strong oil smell as to make ME (not usually bothered by such smells until other people are passed out of have to leave from eyes burning, etc.) dizzy while driving it, but no signs of drippage under the truck. Because the main oil drop was running right off the rear corner of the head and directly onto one of the turbos, which of course gets hot pretty quickly after startup so it was always burning the oil off. I don't know what the rate of oil loss was like in that case, but a slow-but-steady drip can add up to 1 qt/1000 mi. pretty easily.

 

[Bladecutter]

Maybe since you know so much you can elaborate?

Elaborate on what?
What is your question?

 

[Silverado12]

Elaborate on what?
What is your question?

The question is Restore and Protect is GF-6 oil but why wouldn't it be ok for the truck in the discussion?

 

[SwampSurvivor]

FWIW - I recently did valve covers on a early-Ecoboost F150 (2010?) that would generate such a strong oil smell as to make ME (not usually bothered by such smells until other people are passed out of have to leave from eyes burning, etc.) dizzy while driving it, but no signs of drippage under the truck. Because the main oil drop was running right off the rear corner of the head and directly onto one of the turbos, which of course gets hot pretty quickly after startup so it was always burning the oil off. I don't know what the rate of oil loss was like in that case, but a slow-but-steady drip can add up to 1 qt/1000 mi. pretty easily.

That's how my truck is. It currently doesn't leave more than a drop because most of it is absorbed by the rusty (lots of surface area) crossover pipe. Smokes like crazy when it starts up and the exhaust gets some heat.

 

[Bladecutter]

The question is Restore and Protect is GF-6 oil but why wouldn't it be ok for the truck in the discussion?

Why would it not be okay?
It meets all the specs for an SP 5W-30 engine oil.

If someone thinks that the Dexos spec is more important than the API SP oil spec, then I can understand their hesitation.
I would have to ask a forum that specializes in GM vehicles to find out if the dealer service departments enforce the Dexos spec when they are reviewing a DIY Owners oil changes, and if they have a history of denying warranties if a major brand of oil is used (Valvoline, Mobil, etc) that doesn't have the Dexos sticker on the bottle.

If the answer is Yes, dealers do deny warranty claims if the owner doesn't specifically use Dexos branded oil, then NO, don't use Valvoline R&P in the Chevy pickup while it is under warranty. As soon as warranty is no longer an issue to the owner, then they can use whatever oil they want in their truck.

My personal opinion, however, if someone made me care for a GM pickup, I would not have an issue using R&P in it.
It meets API SP specs, has the correct Calcium levels to prevent/reduce LSPI, and is easy to obtain, and performs well.

I have it in my Stelvio, currently.
Down to the last 1k miles on this first 4500 mile oil change interval.