Someone recently asked me about Repsol YPF 5w-40 for use in their 2zz-ge powered 2000+ Toyota Celica and I was unsure about this oil. I have never heard of it. I suggested Mobil 1 0w-40 for his car, but he cannot find it as he is in Panama. He has been using Mobil 1 15w-50 for daily driving and I would think this is too thick of an oil. What does everyone think about Repsol YPF?