The Seaoil Radical Challenge Philippines is back for a fifth season, with the 2026 championship set to open at Clark International Speedway (CIS) on August 21-23.
The four-round series returns to Clark and Batangas Racing Circuit, carrying the momentum of a 2025 campaign that saw both the SR3 and SR1 Challenge Cup titles decided only in the closing rounds. With defending champions expected back and new drivers showing interest, another close season is shaping up.
A notable addition for 2026 is FUCHS Lubricants Philippines, which joins the championship as its official lubricant partner. Under the partnership, every car in the field will use products from FUCHS’ Titan automotive range, including engine oils, gear and transmission fluids. The range also includes the fully synthetic Titan Race line developed specifically for competition use.
Founded in Mannheim, Germany, in 1931, FUCHS is described as the world’s largest independent lubricant manufacturer, offering more than 10,000 specialist lubricant solutions in over 50 countries.
The calendar will take the Radical grid to Batangas for Rounds 2 and 3, scheduled for September 25-27 and October 16-18, respectively. The season finale returns to Clark on November 20-21.
Each weekend will follow a familiar format, with Practice and Qualifying sessions leading into three 30-minute sprint races. That format should keep the pressure high, particularly as the series continues to see lap times fall and overall pace improve.
According to the championship organizers, lap records fell throughout 2025, reflecting the growing competitiveness of the field. Drivers will again rely on the Radical platform’s performance while running on Seaoil Extreme-97 race-engineered fuel.
For Seaoil and Radical Motorsports Philippines, the fifth season is also a milestone for a series that has grown into a platform for developing local racing talent. The organizers say the championship remains focused on competitive and safe racing while giving drivers an opportunity to develop their skills.
The 2026 Seaoil Radical Challenge Philippines is supported by Seaoil Philippines, FUCHS Lubricants Philippines, Bank of the Philippine Islands, Tieline, and John Barbers.
With four rounds packed into the final months of the year, the fifth season gets little time to ease into action. The opening round at Clark should quickly show whether the established front-runners can hold their ground or whether new challengers are ready to shake up the Radical grid.
Autocar’s Take
The fifth season of the Seaoil Radical Challenge Philippines arrives at an interesting point for local motorsport. The series has already established itself as a serious proving ground, and the increasingly competitive lap times suggest the drivers are not simply turning up to race — they are learning to extract more from the Radical platform.
The arrival of FUCHS as Official Lubricant Partner also adds another performance-focused name to the championship. With the SR1 and SR3 fields expected to battle closely again, the 2026 season could be another useful showcase of how Philippine racing talent is developing, with every round carrying stakes.
