From reading the Pentosin A4
spec sheet I would say that it certainly is the same as Toyota SLLC. It's a 50-50 P-OAT that is silicate, borate, nitrite, and amine free which is exactly what Toyota calls for their vehicles in the owners manual. It's not the same as in made in the same factory sold in a different bottle but chemically it's the same. Also let us not forget it is also dyed the same pink color as Toyota SLLC