Since 2001 I have had the used Mobil I oil of my highly modified 1999 Corvette LS1 engine
Results below cover 5 test sample periods since 2001 to just tested this winter of 2022
Keep in mind the engine has 35,500 miles, outputs 125 HP more than when stock and water/Methanol is injected via intake manifold
To understand what the results are, attached below is defined by the test lab that does the testing