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Vivid Racing Gear 
HKS 4L Super Boxer Racing Oil 10W40
Designed specifically for high-performance vehicles, the HKS 4L Super Boxer Racing Oil 10W40 is the perfect choice for those who demand excellence from their engine oil. This premium synthetic oil is tailored to meet the needs of enthusiasts who drive vehicles equipped with a Boxer engine, ensuring optimal performance and protection.
Key Features
- Compatible with stock grade #W 40 for seamless integration.
- Handles high temperatures, with a maximum allowable temperature of 140°C.
- Fully synthetic formulation for superior lubrication and engine cleanliness.
- Offers protection against Low Speed Pre-Ignition (LSPI), a crucial feature for modern engines.
Specifications
- Viscosity: 10W40
- Volume: 4 Liters
- Type: Synthetic Oil
Fitment
This oil is ideal for vehicles equipped with Boxer engines, particularly those looking to enhance their performance on the track or during spirited driving. It's a popular choice among Subaru enthusiasts and other Boxer engine aficionados.
Customer Feedback
Users appreciate the smooth operation and improved responsiveness of their engines after switching to HKS Super Boxer Racing Oil. Many have noted a reduction in engine noise and a noticeable increase in overall performance, especially during high-stress driving conditions.
Watch It in Action
Other Part Numbers:
HKS #hks52001-AK131
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.
HKS provides a warranty to the original purchaser of HKS exhaust systems against defects in materials and workmanship for a period of one year. The warranty applies only for vehicle specific exhaust systems. Other products such as metal catalyzers, front pipes, exhaust manifolds, and center pipes are not covered.
