VOA Hyundai ATF SP4-M vs Compass ATF

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Dec 17, 2025
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Here comes VOA of Hyundai ATF SP4-M vs Compass ATF used by a Hyundai dealer. The Compass ATF sample is taken at 104 miles. The analysis is made at Blackstone labs.
Viscosity difference is: SUS @ 212F = 44.1 vs 45.5, and cSt @100C = 5.45 vs 5.87
For the Elements in PPM really standout Hyundai virgin ATF level higher than Compass ATF:
Calcium 227 vs 150
Phosphorus 289 vs 252

Questions to dear Experts:
Do these results confirm the Compass ATF is good enough to replace Hyundai ATF?
Do Calcium and Phosphorus "wear out"? Esp at such a low mileage?

Thanks
HyundaiSP4-M-0mi-2026-01-30 173609.webp
CompassATF-104mi-2026-01-30.173336.webp
 
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Thanks!

Also, found SP4-M1 result from a different lab https://bobistheoilguy.com/forums/threads/voa-hyundai-kia-sp4m-1-atf.401476/
Calcium 126
Phosphorus 248
Viscosity 100c 5.4

In summary, for those who will be digging it: SP4-M vs Compass ATF vs SP4-M1
Viscosity difference cSt @100C: 5.45 vs 5.87 vs 5.4
For the Elements in PPM:
Calcium 227 vs 150 vs 126
Phosphorus 289 vs 252 vs 248

"Buttometer" shift quality / long term use on Hyundai Santa Fe 2020 2.4 FWD, - can't really tell, and can't conclude on any particular variant, as it seems like some mechanical issue developing slowly regardless of the fluid.
 
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