Over the past 40-plus years, I have changed the oil in more engines ... agree on the best motor oil brand it suggests, but it is a good idea to use the specified oil weight. Pennzoil specifically ...

Pennzoil produces a range of conventional motor ... oil. Serving over 140 countries, Valvoline is a significant producer of synthetic, synthetic blends, high mileage, heavy duty, small engine ...

Mobil 1 Extended Performance full-synthetic motor oil 5W-30 helps protect critical engine parts for up to 20,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and ...