1. Which Brand is Better for Gasoline Engines?
For gasoline engines like cars and trucks, Amsoil is the top choice. Their full synthetic formulations are engineered to provide the best protection and performance in gas engines. Amsoil keeps engines running cleaner for maximum fuel efficiency and power.
2. Which Oil is Better for Diesel Engines?
Both Amsoil and Lucas make excellent oils tailored for diesel engines. However, Amsoil edges out Lucas due to their wider variety of diesel-specific formulas catering to all applications. Whether you have an old agricultural diesel or a new heavy duty truck, Amsoil has the right oil.
3. Can Amsoil or Lucas Improve Fuel Economy?
Yes, both brands are proven to boost fuel economy to some degree. But studies show Amsoil lowers operating temperatures even more, translating to maximized efficiency gains of up to 4% versus other oils. Their unrivaled protection qualities result in less engine friction and drag.
4. How Much Longer Will Amsoil or Lucas Last?
Amsoil is engineered to go up to twice as far between changes compared to other oils. Most customers report changing every 15,000-25,000 miles with Amsoil versus 5,000-10,000 miles with other brands. Lucas can also go longer than conventional oils, but not quite as far as Amsoil.
5. Which Brand is Best for High-Performance Engines?
Amsoil is the top choice for performance and racing engines. Their full synthetic formulations are specifically engineered to withstand the high heat and stresses of boosted motors. Amsoil protects critical components and maximizes horsepower.
6. Which Oil is More Cost-Effective in the Long-Run?
Amsoil saves the most money over time due to their ultra-long drain intervals requiring fewer oil changes. The savings from fewer changes, plus Amsoil-protected engines lasting longer overall, make Amsoil the most cost-effective choice by far versus other brands.