While not as popular as other brands outside the U.S., Amsoil synthetic motor oil products cater to the automotive, power sports, industrial, and racing sectors.
Since Amsoil motor oil is less likely to thicken, it works great in extreme temperatures, especially in the cold. As a result, you will have easier cold starts.
Founded in 1954, STP became well-known after sponsoring successful racing teams. The brand offers two lines: Pro Performance conventional oil and SYN Full Synthetic oil.
While STP makes excellent products that represent good value for your money, its performance-based motor oils may be considered niche for the casual consumer.
Recognizable for its bright yellow cartons, Pennzoil offers customers exclusive service products that guarantee users protection for 15 years or 500,000 miles.
Pennzoil produces a range of conventional motor oils, synthetic blends, and full-synthetic oils, such as its Ultra Platinum, High Mileage, and Platinum Euro lines.
Havoline is a motor oil company with a history of experimentation and innovation. It offers a broad range of products, including conventional oil and synthetic blends.
However, one stand out is its Pro RS Renewable line, a more eco-friendly blend that comprises one-quarter of sustainably sourced plant-based oil in a fully synthetic motor oil.
Serving over 140 countries, Valvoline is a significant producer of synthetic, synthetic blends, high mileage, heavy duty, small engine, and performance motor oils.
While its products largely equal those of its peers in terms of quality and performance, Valvoline continues to pioneer advances in innovation and improved quality.