I am taking my cats out
Oil pressure is important but HTHS rating is more important to me. 0w20 mobil 1 has a HTHS rating of 2.61, most good racing oils have HTHS rating of 4+
I'd run motul 300v if I could, but it's too damn expensive.
0w20 oils shear too much with temp and their ZDDP levels are just too low when I am making 800hp.
Ford puts 0w20 because that is what gives them best economy and they are restricted to oil that have 800ppm of ZDDP or less.
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