The primary difference between 5W-20 vs 5W-30 is their viscosity once your engine has reached operating temperature. Notice the different numbers in the viscosity ratings: “5W” and either “20” or “30”.The first number (5W) refers to the oil’s viscosity when cold, measured at -30°...
Let us look at the main differences between engines H23A and H22A. To obtain 2.3 liter of displacement, they inserted a 95 mm stroke crankshaft and pistons with the compression height of 30.5 mm; the rod length was decreased to 141.5 mm. All together, it provided the displacement of 2,259...