HPL Premium Plus vs Super Car for High Boost DI Engine

[LF4]

All,

Been running 5W-50 HPL Premium Plus Passenger Car in my Cadillac ATS-V (LF4, 3.6L V6, 25 psi boosted). Love it. It's time to order more oil, though and I'm trying to decide between HPL Premium Plus PCMO and HPL Super Car. There's not a lot of data available for Super Car, but it looks incorrect for my DI application due to the calcium content. Can anyone provide any input on this?

I can't find much data, but it looks to have:

Calcium: 2600 ppm SC vs 1100-1200 PPPC
Magnesium: 900 ppm SC vs 1900-2200 PPPC
Phosphorus: 900 ppm SC vs. 600-800 PPPC
Zinc: 1000 ppm SC vs. 750-900 PPPC
Molybdenum: both are ~750 ppm
Boron: 75 ppm SC vs 35 PPPC
TBN: 12.0 SC vs. 13.5 PPPC
HTHS: unknown vs ~4.75

Cost is not a factor compared to the price of the engine.

 

[Rand]

Is there any history of LSPI with your engine family?
typically it is smaller displacement T-GDI engines such as 1.5L

maybe contact @HPL Plant Manager directly.

 

[kschachn]

All,

Been running 5W-50 HPL Premium Plus Passenger Car in my Cadillac ATS-V (LF4, 3.6L V6, 25 psi boosted). Love it. It's time to order more oil, though and I'm trying to decide between HPL PPPC and HPL Super Car. There's not a lot of data available for Super Car, but it looks incorrect for my DI application due to the calcium content. Can anyone provide any input on this?

I can't find much data, but it looks to have:

Calcium: 2600 ppm SC vs 1100-1200 PPPC
Magnesium: 900 ppm SC vs 1900-2200 PPPC
Phosphorus: 900 ppm SC vs. 600-800 PPPC
Zinc: 1000 ppm SC vs. 750-900 PPPC
Molybdenum: both are ~750 ppm
Boron: 75 ppm SC vs 35 PPPC
TBN: 12.0 SC vs. 13.5 PPPC
HTHS: unknown vs ~4.75

Cost is not a factor compared to the price of the engine.

View attachment 325607

A propensity for an oil to promote LSPI is influenced by the complete additive package, not just one element. Is this oil being used by the recommendation of HPL or did you just pick it out?

And agree with @Rand above. It’s also highly dependent on the specific engine design.

 

[4wd]

A propensity for an oil to promote LSPI is influenced by the complete additive package, not just one element. Is this oil being used by the recommendation of HPL or did you just pick it out?

And agree with @Rand above. It’s also highly dependent on the specific engine design.

Yup - serious moly PPM is one quencher I spotted …

 

[Sloppy_Snood]

Although my RAM1500 5.7 Hemi is not a direct injection fed engine, I did discuss the impact of HPL Super Car's high calcium versus the Premium Plus PCMO (PPPCMO) with David Ward in direct messages.

My understanding is that LSPI will generally not be an issue due to the nice plug of molybdenum in the Super Car oil. That said, PPPCMO also has the same level of molybdenum, lower Calcium, and good Magnesium content.

While both oils would work just fine, the PPPCMO would be better suited to prevent LSPI issues in any Direct Injection style engine.

I also suggest that consider the base HPL PCMO or Premium PCMO if you believe (or have OCI analysis data) issues with fuel dilution in your oil. The molybdenum levels are good in these offerings as well.

If you do and 5K-mile OCI intervals or such is required due to fuel dilution, the base HPL PCMO may be more cost effective for you.

Let us know what you decide!

 

[si1491]

Best thing to do is contact HPL and ask that question. Let us know what they say when you do.
I use HPL's 0W-40 Super Car engine oil in my 2015 MB GLA45 AMG, changed at 10k miles. The engine is a 2.0L 4cyl DIT with over 26psi of boost. Stock power was 355hp 332lb-ft (later models upped the power) but I currently have a RENNtech tune which significantly upped the torque and boost in the lower RPM ranges. Power might be north of 400hp and over 400ft-lb.
I have not had any issues with the oil, it stays in grade for the full 10k miles, no LSPI events that I know of, and the engine performs well.

 

[JudySS1le]

I had the same inquiry to David at HPL regarding LSPI with the Supercar oil and it’s higher Ca content and recieved the answer below:

“Calcium is negative magnesium is neutral. Moly and ZDDP is a net gain against LSPI.”