Mercury 115HP F115 4-Stroke Long Shaft Outboard Motor F115ELPT CT EFI

Mercury 115HP F115 4-Stroke Long Shaft Outboard Motor F115ELPT CT EFI

Mercury 115HP F115 4-Stroke Long Shaft Outboard Motor F115ELPT CT EFI are a lightweight, high-displacement marine engine known for strong acceleration, fuel efficiency, and a robust Command Thrust gearcase, making it suitable for a variety of boats.

Mercury 115HP F115 4-Stroke Long Shaft Outboard Motor F115ELPT CT EFI Key Features

• Engine Type: The F115ELPT CT features a 4-cylinder, 8-valve single overhead cam (SOHC) design with a 2.1-liter displacement, which provides significant torque without working the engine too hard.
• Performance: It offers a high power-to-weight ratio, which helps boats plane faster and improves overall acceleration and top speed. Mercury's Transient Spark technology optimizes ignition timing at low speeds for better low-end power.
• Command Thrust (CT) Gearcase: A key feature is the larger, heavy-duty Command Thrust gearcase, typically found on higher-horsepower engines. This allows for the use of larger-diameter propellers, improving boat lift, manoeuvrability, and performance on heavier boats or pontoons.
• Fuel System: It uses a Computer Controlled Multi-Port Electronic Fuel Injection (EFI) system, which provides reliable, "turnkey" starting in various conditions and enhances fuel efficiency.
• Quiet & Smooth Operation: The engine is designed for minimal noise and vibration, featuring a tightly sealed cowl, an Idle-Relief Muffler, and a focused mount system.
• Ease of Maintenance: It has a maintenance-free valve train and a tool-less fuel filter replacement system, reducing overall ownership costs.
• SmartCraft Compatible: The engine is compatible with Mercury's SmartCraft digital technology, which provides essential engine data and diagnostic information to the operator. 

Mercury 115HP F115 4-Stroke Long Shaft Outboard Motor F115ELPT CT EFI FAQs

• What does "ELPT CT EFI" stand for?
  • E: Electric Start
  • L: Long Shaft (20 inches/508 mm)
  • PT: Power Trim and Tilt
  • CT: Command Thrust gearcase, which uses a larger torpedo and prop to improve heavy boat performance
  • EFI: Electronic Fuel Injection
• What kind of fuel and oil should I use?
  • Fuel: Unleaded automotive gasoline with a minimum pump octane rating of 87 (90 RON minimum).
  • Oil: Mercury FourStroke Oil 10W-30 is the recommended viscosity. The engine oil capacity is approximately 5.5 US quarts (5.2 liters).
• What is the break-in procedure for a new motor? For the first two hours, operate at varied throttle settings up to 4500 rpm. For the next eight hours, run in standard fashion, but avoid running at wide-open throttle (WOT) for more than five minutes continuously.
• What is the typical WOT RPM range? The full throttle RPM range is between 5000 and 6000 rpm. 
• How often should I service the engine? An annual service or service every 100 hours of use (whichever comes first) is recommended by Mercury. Deeper maintenance is required every 300 hours or three years.
• What does the 100-hour/annual service include? Key tasks include changing the engine oil and oil filter, draining and replacing the gearcase lubricant, inspecting the spark plugs and anodes, and checking the fuel filter.
• Can I run the motor out of the water? No, you should never run the outboard without water circulating through the cooling water intake in the gear case, as it will damage the water pump and cause the engine to overheat.