No. Certifications determine a performance floor. You could run all 4 oils in separate engines for say 250k miles, and you would be hard-pressed to ever determine any statistically significant difference in any wear metric or performance measurement between the oils.Well there just seem to be several good options.
1.Mobil 1 ESP 5w30
2. Pennzoil euro L 5w30
3. Pennzoil euro 5w30 a3/b4
4. Castrol edge euro 5w30 a3/b4
The last two being full saps so I know they are different than the euro L and the ESP.
Would my engine notice a difference between any of these? Are any of these better than the others?