OIl Grade Suggestion for 300k 6.0L Chevy..

[4WD]

Root cause of burning oil?

Used it too much when it was new

 

[Sienna dude]

Used it too much when it was new

You need some restore and protect. Check the thickest they make

 

[CarlB]

Mobil 1 10w-30 up until 275,000 miles is when the engine really started to burn up oil and loose oil Psi... From that point is when I have gone up in thickness gradually with better results as I have gone thicker and thicker for the last 50,000 miles....Engine runs very strong..

VRP helped the consumption on my LQ4.

 

[Sienna dude]

Used it too much when it was new

 

[Glenda W.]

View attachment 287432

I wouldn’t use that one. It’s only 99%

 

[tired]

I usually put in a Bottle of MMO 250-500 miles before my oil change to help loosen and clean the engine up as my oil come out pretty black at 5000 mile intervals.....

Can't hurt to try the BG EPR once and see what you get out. It's not expensive either.

 

[fen1]

Why should i not just run Mobil 1 15w-50 at the next oil change vs the 15-40 Diesel? Pros/cons? And ill check the PCV system, im pretty up on that , im sure it ok, ill report back soon on that..

I saw on another thread that CUJET suggested M1 15W-50 for an oil burner. His word goes a long way with me and I'd put that in right away.

 

[Ic3y]

I use Valvoline Restore and Protect in my Holden L98 6.0L. Excellent wear rate on the UOA and if your oil burning is from carbon in the oil control rings it could fix it. What have you got to lose but try?