Oil is not the same as oil. !!!
Fully synthetic racing oils from Elf are more powerful than conventional ones.
Fully synthetic oils offer better protection against engine wear and high temperatures.
With their modern "friction body" (friction reducer) and their lower viscosity, they ensure lower frictional resistance in the engine.
Less friction means:
less temperature, fewer metal contacts = less wear, a more easily rotating motor = more power.
Test bench reports have shown that the performance advantage over other TOP oils in the oil series
HTX 38XX of approx. 2%, HTX 8XX of approx. 1%,
and that only by changing the oil and with less wear.