How much gear oil does a lower unit take?
How much gear oil does a lower unit take?
STEP
| Lower Unit Oil Needed by Model | |
|---|---|
| Model | Approximate Fluid Ounces Required |
| 9.8 (2-stroke & 4-stroke) | 10.8 fl oz |
| 9.9 (2-stroke) | 12.5 fl oz |
| 9.9A (4-stroke) | 6.8 fl oz |
What year did Mercury stop making OptiMax?
In May 2018, Mercury Marine discontinued manufacturing all of its 2-stroke engines, commonly called the OptiMax series.
Is Mercury 115 OptiMax a four stroke?
There are only three outboards in the 115hp range of direct fuel injection (DFI) two-strokes: the Evinrude E-TEC 115, Tohatsu TLDI 115 and Mercury OptiMax….THE COMPETITION.
| Outboard | E-TEC 115 | Tohatsu TLDI 115 |
|---|---|---|
| OEDA Stars | 3 | 3 |
What type of oil goes in a Mercury lower unit?
Mercury Premium SAE 80W90 Gear Lube is recommended for lower units for outboards below 75 horsepower. Mercury Premium SAE 80W90 Gear Lube should not be mixed with Mercury High-Performance SAE 90 Gear Lube.
How does the new Mercury Optimax 115 severs work?
Like all other OptiMax engines, the new 115 severs ties with past two-stroke lubrication systems. Rather than the conventional approach to internal lubrication – mixing gas and oil to smear every engine component with a lubricating film – Mercury engineers installed an ECM-controlled oil pump that oils connecting rods directly.
What kind of oil should I use in my mercury Opti Max?
Recommended Oil Mercury or Quicksilver Optimax/DFI 2-Cycle engine oil is recommended for your engine. If Opti- max/DFI 2-Cycle engine oil is not available, we recommend using Mercury or Quicksilver TC-W3 Premium Plus 2-Cycle Oil. Severe engine damage may result from use of an inferior oil.
When did the Mercury Optimax fuel injection system come out?
February 14, 2000 Introduced in 1995, Mercury’s OptiMax direct fuel-injection system was a lead bull in the manufacturers’ stampede toward cleaner two-stroke engines. OptiMax was not designed as a fuel system to bolt onto an existing engine, but as a new power plant to complement Mercury’s line of outboard engines.
What is the oil ratio for an Optimax engine?
With the ability to electronically control the pump, oil ratios vary from 400:1 at idle to 44:1 at wide-open throttle. As a result, OptiMax engines use up to 50 percent less oil and run virtually smoke-free.
