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AMSOIL HP Injector Synthetic 2-Cycle Oil (HPI)
Excellent for all outboard motors with a performance emphasis on
modern direct fuel injected (DFI) technology. Also recommended for
personal watercraft, jet boats, motorcycles, snowmobiles and ATVs.
Injector use or 50:1 premix.

NMMA TC-W3, API TC
Package sizes include:

1-Quart Bottle
1-Quart Bottles (case of 12)
1-Gallon Bottle
1-Gallon Bottles (case of 4)
16-Gallon Keg
  • Superior performance in DFI outboard motors
  • Reduces piston and combustion chamber deposits
  • Protects against "ring jacking" common to DFI outboards
  • Low smoke, low odor product
  • Contains up to 30 percent more additives for "super clean" operation
  • Reduces wear for long engine life
  • Protects against rust
  • Multi-functional and recommended for use in many two-cycle motors
  • Low aquatic toxicity
  • Recommended for use as injection oil or at a 50:1 pre-mix
hp Injector is a precise synthetic formulation that exceeds the lubrication demands of modern two-cycle
ratios than older motors. This difficult operating environment requires proper lubrication technology to
keep motors running long and strong. hp Injector is a premium lubricant engineered with AMSOIL other
TC-W3 two-cycle oils for “super clean” operation. And because AMSOIL synthetic oils are more
durable, they are perfect for lean mixture operations. In addition, this AMSOIL exclusive product
produces low smoke and odor and has low aquatic toxicity properties, making it ideal for boats.

hp Injector improves engine life. It helps prevent deposits that cause ring sticking and ring jacking
(carbon build-up behind the ring, forcing it outward), a phenomenon that occurs in modern DFI
outboard motors. hp Injector reduces wear. It has excellent lubricity properties and provides a good
lubricating oil film, protecting pistons and bearings. hp Injector protects against rust, an important
feature where motors are subjected to water. hp Injector provides superior performance in direct fuel
injected (DFI), semi-direct fuel injected (SDI), electronic fuel injected (EFI) and carbureted outboard
motors, as well as other recreational equipment.

Applications (
2-Cycle Recommendations Chart)
hp Injector is recommended for use in all two-cycle outboard motors including, but not limited to,
Mercury® EFI & Optimax®, Johnson® and Evinrude® FICHT® and E-TEC™, Yamaha® HPDI, Nissan®
and Tohatsu® TLDI®, Suzuki®, Mariner® and Force®. Also recommended for use in all two-cycle
personal watercraft and jet boats, as well as snowmobiles, motorcycles and ATVs.

Use as injection oil or as 50:1 pre-mix (2.6 oz. per U.S. gallon of gas) where NMMA TC-W3 or API TC
oils are specified. Compatible with mineral and synthetic TC-W3-type two-cycle oils, however, mixing
two-cycle oils should be minimized.
TYPICAL TECHNICAL PROPERTIES - Revised as of 6/08

hp Injector Synthetic 2-Cycle Oil
Kinematic Viscosity @ 100°C, cSt (ASTM D445)
8.5
Kinematic Viscosity @ 40°C, cSt (ASTM D445)
46.8
Viscosity Index (ASTM D2270)
160
Pour Point °C (°F) (ASTM D92)
-46 (-51)
Flash Point °C (°F) (ASTM D92)
86 (187)
Fire Point °C (°F) (ASTM D-92)
86 (187)
DANGER: harmful or fatal if swallowed. Contains synthetic lubricant and petroleum distillates. If swallowed do not induce
vomiting. Contact a physician immediately. Keep away from fire, heat and open flame. Use with adequate ventilation. Avoid
frequent or prolonged skin contact. Flush eyes with water for 15 minutes in case of contact. KEEP OUT OF REACH OF
CHILDREN.
AMSOIL 2-Cycle Oil Lineup
HPI Applications
"The Fabulous Four"
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