Red Line 5wt and 10wt racing oils additive package

[RDY4WAR]

I got in touch with Dave @ Red Line inquiring about their 5wt and 10wt race oils. He sent me this chart showing the additive package. I figured I'd share it here.

He informed me that the boron caps the dispersant, and the moly is MoDTC, and the extra phosphorus in the 5wt comes from additional phosphates.

Red Line 5wt (0w-5)

KV100...............4.6
KV40.................21.8
VI......................134
CCS..................2000 cP @ -30*C
NOACK.............12%

Red Line 10wt (0w-10)

KV100............... 5.8
KV40..................29.9
VI.......................138
CCS...................3000 cP @ -30*C
NOACK..............9%

I have a few quarts of the 10wt sitting around which I've considered mixing with other oils. I've considered blending it with Rotella T4 15w-40 at 1 quart of 10wt to 1 gallon of T4 to get a robust 30 grade. If I did the math right, it "should" net the following.

KV100................12.23
KV40..................84.01
VI.......................141
HTHS.................3.6-3.8 ish

Ca......................1806
Mg......................14
P.........................1275
Zn.......................1376
Mo......................422
B.........................152

Any thoughts on running such a blend in a mild power'd Camaro bracket car?

 

[OVERKILL]

Well, looking at J300, they are really 0w-8 and 0w-12 respectively:

I would be concerned that the HTHS is too low to adequately protect the bearings on a GM small block, which likely is designed around something with an HTHS ~3.0

 

[RDY4WAR]

Originally Posted by OVERKILL
I would be concerned that the HTHS is too low to adequately protect the bearings on a GM small block, which likely is designed around something with an HTHS ~3.0


Noted. That's why I was considering mixing 1 quart of it with 4 quarts of a stout 15w-40 like Rotella T4 which has an HTHS of around 4.1 to get a net HTHS around 3.7 or so. Would there be any issue with mix/emulsify between a group II/III conventional like T4 and an ester based synthetic like RL?

 

[OVERKILL]

I would expect that the result of such a blend would be sub-optimal. You are likely better just using Redline 0w-20 with an HTHS of 2.9. Their 0w-30 is a little heavier with an HTHS of 3.2, which might also work.

 

[RDY4WAR]

I know a straight oil would be better. I just have 8 quarts of the 10wt sitting around from another project that I wanted to use. It's too thin to use by itself.

What do you think would make it sub-optimal? Base oils or additive clash? (for knowledge sake)

 

[OVERKILL]

Basically just entirely different chemistries. You could buy their 5w-30 and blend in the 0w-10, that would work.