Castrol® Duratec™ LFG
Excellent siloxane control and acid neutralization to safely extend drain intervals, lower oil consumption and increase head life
Castrol® Duratec™ HPL
Safely extending drain intervals while keeping the engine clean.
Castrol® Duratec™ L
Proven protection for high-speed 4-stroke natural-gas engines.
Castrol® Duratec™ A
Proven protection for 2-stroke and select 4 stroke natural-gas engines.
Castrol® Hypuron™ 15W-40
The market-leading extended-drain oil, safely allowing fleets to run up to 50,000-mile drain intervals.
Castrol® Hypuron™ Advanced Formula 10W-30
This advanced formula can extend your drain intervals all the way to 70,000 miles*.
Castrol® Assuron™ 10 30 & 10 40
High-performance, straight-grade, heavy-duty engine oils that are extremely resistant to high temperature deposits.
Castrol® Tection® Extra 15W-40
Modern engines run under harsher conditions than ever before. That's why Castrol Tection Extra is engineered to deliver 12 benefits in 1.
Castrol® Tection® HD 10W-30
Effectively disperses soot particles to protect against soot-related wear and deposits.