Research Article
Experimental Comparison of the Effect of Using Synthetic, Semi-Synthetic, and Mineral Engine Oil on Gasoline Engine Parts Wear
Table 1
General overview of base oils and viscosities.
| API group | Classification | SAE viscosity | Cost |
| Mineral base oils | Group I | Mineral oil | 15W40, 20W50 | Low | Group II | Mineral oil | 10W40, 15W40 | Low | Group III | Mineral oil/hydrocracked | 5W20, 5W30, 5W40, 10W40 | Moderate | Synthetic base oils | Group IV | Synthetic oil | 0W20, 0W30, 0W40, 5W20, 5W30, 5W40, 10W40 | High | Group V | Synthetic ester | 2W20, 0W30, 0W40 | Extremely high |
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