For high-performance and racing two-stroke outboards, dependable lubrication is everything—especially on hard-run Mercury Racing engines in carb, EFI, DFI, and OptiMax configurations.
Whether you’re running steel-sleeved cylinders or Nikasil-sleeved bores, the oil you choose must maintain film strength at high temperature, resist deposit formation, and protect rings and bearings under sustained load.
Red Line Two-Stroke Racing Oil is formulated specifically for severe-duty two-stroke service where heat, RPM, and throttle time are high. Buckshot Racing #77 now offers this race-proven oil in two convenient case sizes, drop-shipped within the USA.
Why choose ester-based racing two-stroke oil
Red Line Two-Stroke Racing Oil is built on ester-based synthetic chemistry, which is widely valued in performance lubrication because esters naturally provide strong film adhesion to metal surfaces, high thermal stability, and excellent detergency characteristics.
In practical terms, that means consistent lubrication under heat soak, reduced friction where it matters, and cleaner operation compared to oils that struggle with high-temperature deposit control.
On engines that see frequent wide-open throttle—like many Mercury Racing V6 combinations—the oil’s ability to keep ring lands and exhaust areas cleaner can translate into more consistent performance, fewer plug issues, and more reliable long-term protection.
Compatible with Premix and Oil-Injection Systems
Red Line Two-Stroke Racing Oil (RED-40603 / RED-40605) is formulated for high-output two-stroke engines and, per Red Line, can be used in both premix and oil-injection systems.
Fuel-to-oil ratio should always be set according to your engine builder’s recommendation, your fuel quality, and your exact setup (compression, timing, load, and operating RPM). A high-output Mercury Racing engine that lives at elevated RPM requires a conservative, proven ratio and a fuel system you trust. Check our Tech Hub for recommendations.
Built for heat, load, and clean operation
High-RPM two-stroke outboards generate extreme combustion heat and high surface speeds at the rings and bores. A racing oil must do more than “lubricate”—it must protect against scuffing under load, resist breakdown at temperature, and limit deposits that can interfere with ring seal or exhaust flow. Red Line’s racing formulation is selected by performance users who prioritize stable protection and cleaner internals across long pulls, repeated passes, and demanding river or offshore-style use.
Two (2) case options available from Buckshot Racing #77
To make ordering easier for both weekend performance boaters and high-use race programs, Buckshot Racing #77 offers Red Line Two-Stroke Racing Oil in two case configurations:
4 x Gallons Case (Option 1): RED-40603 / 1062958, a case of twelve (12) 16-oz bottles of Red Line Two-Stroke Racing Oil. This option is ideal for travel, pit use, and keeping measured premix ready without hauling bulk containers.
12 x 16oz Case (Option 2): RED-40605 / 1062959, a case of four (4) one-gallon jugs of Red Line Two-Stroke Racing Oil. This option is a great fit for high-hour use, shop inventory, and race teams that mix frequently.
Both case options are drop-shipped in the USA, so you can stock up before your next race weekend, river run, or rebuild break-in schedule.
Contact Mike Hill at +1-714-697-1716 or email mike@buckshotracing77.com for technical support.