Recommended Oil for LSX (GM) Engine w/ LSA Setup

[FL4T0UT]

Hey Guys,

New Here. I've followed and looked for information when needed but now I can't find any information and need help!

I am looking for a very good oil to use for my setup without causing issues. I have a 2015 Chevy SS w/ a LSX 376 Crate engine I got from Chevy. I put a few things into it mod wise and a LSA Supercharger.

The Recommended oil per Gm is 5W30 Mobil 1 (or Other Meeting GM4718M Standard) and I can't find the GM4718M standard anywhere. The motor will be running about 17-19 lbs of boost and E85 fuel. Looking for between 3-5K oil changes and the most protection I can get out of the oil for Street/Strip use.

I used to have a 2013 STI that used Mobil 1 5W30 and I use to use Mobil 1 OW40 with great success from Blackstone Labs. I was thinking of using that BUT I am unsure.

Thanks

 

[SubieRubyRoo]

My pick for your engine

This has proven to be a great oil in heavily boosted engines, has a great TBN, and isn't overly thick. It will easily deliver on 5k OCIs.

 

[RooflessVW]

Mobil 1 0W-40 is a fine choice, as would the same from Castrol or Pennzoil.

 

[slacktide_bitog]

4718M has been superseded by dexos1, which in turn has been superseded by dexos1 gen2.

However, GM recently back-spec'd all Corvettes to dexos2 (NOT the same as dexos1 gen2 or d1g2)

Use PP Euro L 5w30 or Valvoline MST 5w40, as they are probably the best-priced and most widely-available dexos2 oils out there

However, the M1 0w40 will probably work fine in your LSA as well

 

[HemiHawk]

Did something happen to the original motor? Or just swapped it for more power potential?

 

[FL4T0UT]

Originally Posted By: SubieRubyRoo
My pick for your engine

This has proven to be a great oil in heavily boosted engines, has a great TBN, and isn't overly thick. It will easily deliver on 5k OCIs.


Any issues that you know of mixing with E85 fuel?

 

[FL4T0UT]

Originally Posted By: slacktide_bitog

4718M has been superseded by dexos1, which in turn has been superseded by dexos1 gen2.

However, GM recently back-spec'd all Corvettes to dexos2 (NOT the same as dexos1 gen2 or d1g2)

Use PP Euro L 5w30 or Valvoline MST 5w40, as they are probably the best-priced and most widely-available dexos2 oils out there

However, the M1 0w40 will probably work fine in your LSA as well

Sorry for the n00b question, but what is PP Euro L?

I keep leaning towards M1 OW40 Euro for some reason but didn't want to cause any issues.

 

[FL4T0UT]

Originally Posted By: HemiHawk
Did something happen to the original motor? Or just swapped it for more power potential?


Swapped LSX for more power down the road. Already had it from my old car it was supposed to go into.

 

[FL4T0UT]

I have a feeling I should mention that for the past 20-25K miles I have ran M1 5W30 in the car. Changing over wouldn't cause an issue now would it?

 

[FL4T0UT]

The oils I was looking at was the following:

Joe Gibbs Driven (LS30, DT40, DP40)

Motul

M1 0W-40 Euro

 

[slacktide_bitog]

Originally Posted By: FL4T0UT
Sorry for the n00b question, but what is PP Euro L?

I keep leaning towards M1 OW40 Euro for some reason but didn't want to cause any issues.


PP Euro L is Pennzoil Platinum Euro L

Walmart has it at a good price