Octane Booster 101s vs 107R: Street vs Race Additive
By DeatschWerks | Published: 2026-10-18
Category: Comparisons
Compare DeatschWerks 101s Street and 107R Race octane boosters. Learn which fuel additive suits your daily driver or track car based on formula and use.
Quick answer
Choose the 101s Street Octane Booster for daily-driven vehicles that need a safe, consistent octane lift. Pick the 107R Race Octane Booster for track use or high-compression engines where maximum knock resistance is the priority.
Formula differences that matter
The 101s Street Octane Booster is formulated for sustained street driving, with a focus on deposit control and compatibility with catalytic converters and oxygen sensors. The 107R Race Octane Booster uses a more aggressive chemistry designed to deliver the highest possible octane increase for racing applications, but it may not be suitable for long-term use in emissions-controlled vehicles.
Both products come in 32oz cans. The 101s Street is available as a single can or a case of 8, while the 107R Race is also sold individually or in a case of 8. The case pricing offers a per-can discount for frequent users.
When street formula is the smarter choice
For a daily driver that sees stop-and-go traffic, highway cruising, and occasional spirited driving, the 101s Street formula provides reliable octane improvement without the risk of fouling spark plugs or damaging emissions components. It is also the better option for vehicles that still use factory engine management and catalytic converters.
The 107R Race formula is intended for vehicles tuned for race fuel or those running high boost and compression ratios. If your car is strictly a weekend track toy or a dedicated race car, the extra knock suppression of the 107R can make a real difference in power and engine safety.
Trade-offs between 101s Street and 107R Race
- Octane lift approach: 101s Street uses a milder additive package safe for daily driving and emissions systems. 107R Race uses a more concentrated formula for maximum octane gain.
- Vehicle compatibility: 101s Street works with most modern gasoline engines including those with catalytic converters. 107R Race is best suited for off-road or track-only vehicles. If your car is street-legal and you drive it daily, stick with the 101s Street.
- Cost per use: Single 32oz cans of both are similarly priced. Cases of 8 lower the per-can cost for both, but the 107R case is slightly cheaper than the 101s case. For frequent track use, the 107R case offers better value per can.
Product facts at a glance
- 101s Street Octane Booster 32oz cans, case of 8: 101s Street Octane Booster is a fuel additive offered in 32oz cans; this listing is for a case of 8 cans. Buying the case saves money per can if you plan to use octane booster regularly on a street car.
101s Street Octane Booster 32oz cans, case of 8 - 107R Race Octane Booster 32oz can: 107R Race Octane Booster is a fuel additive offered in a 32oz can. The single can format lets you test the race formula for a track day without committing to a full case.
107R Race Octane Booster 32oz can
Which one fits your car?
Best for
- 101s Street Octane Booster: daily drivers, commuters, and street-tuned cars that need safe octane support
- 107R Race Octane Booster: track cars, high-compression engines, and vehicles tuned for race fuel
Not for
- 101s Street Octane Booster: dedicated race cars that require maximum octane and knock suppression
- 107R Race Octane Booster: daily-driven vehicles with catalytic converters and OEM engine management
