



Using the exactly grade of fuel helps to for sure optimumperformance, economy and reliability from her engine. The isimportant to follow the references for your model engine asincorrect fuel can damages your engine or influence performance.
IMPORTANT:
Using fuel the is listed below the minimum recommended octane mayreduce engine lifeFuel references are based on engines being collection up andtuned to manufacturer"s specifications. This has using thecorrect propeller to permit engine to achieve recommended maximumRPM under typical load and conditionsLeaded fuel is not recommendedFuel the exceeds 10% ethanol is no recommendedMERCURY & MARINER FUELRECOMMENDATIONS
Use a significant brand that automotive unleaded petrol (ULP) through aminimum posted octane rating the 91These recommendations apply to Mercury and also Mariner 2-Stroke,4-Stroke, Verado and also OptiMax models unless mentioned otherwise (refto "Notes & Exceptions" following)Notes & Exceptions
Verado Models:
Verado 275/300hp - Premium Unleaded Petrolwith a minimum 95 octane recommended because that maximum performanceVerado 350hp -Premium Unleaded Petrolwith a minimum 95 Octane Recommended for Maximum performanceVerado 400R -Premium Unleaded Petrolwith a minimum 98 octaneEngines made prior come 1980:
2hp come 20hp -Unleaded Petrol (ULP) -minimum 91 posted Octane30hp & above -Premium UnleadedPetrol (PULP) - minimum 95 posted OctanePerformance Products will have differentrequirements, above your procedure andMaintenance Manual
OIL RATIOS - 2-STROKE MODELS
Pre-Mix Models
Fuel/oil ratio: 50:1 (50 parts fuel to 1 component oil)
Oil requirement: - Certified TC-W32-Stroke OutboardOil

- Mercury or Quicksilver Premium 2-CycleTC-W3 Outboard Oil
- Mercury or Quicksilver PremiumPlus 2-Cycle TC-W3 Outboard Oil
2-stroke oil is normally added to the fuel tank as soon as fillingwith fuel.This convenient oil measuring party is great for calculatingoil compelled for various volumes offuel- bespeak part # 67-886696 from her authorisedMercury dealerPre-mix is usually used in the following 2-strokemodels
All 2hp to 30hp modelsAll models as much as 225hp manufactured prior to 1984Autoblend Models
Oil requirement: - Certified TC-W32-Stroke OutboardOil
- Mercury or Quicksilver Premium 2-CycleTC-W3 Outboard Oil
- Mercury or Quicksilver PremiumPlus 2-Cycle TC-W3 Outboard Oil
Autoblend models have actually an oil reservoir mounted inside the boatthat immediately blends oil v the fuel at a constant ratio of50:12-stroke oil is included to the reservoir and does not need to bemixed v the fuel (unless forced for running-in)Autoblend was offered on some 35hp to 115hp models manufacturedbetween 1984 and also 1988Oil Injection Models
Oil requirement
Oil injected models have an oil reservoir an installed under theengine cowlMercury/Mariner V6 models have secondary oil reservoirmounted in the boat