Engine Oil. TOHATSU BFT 115A, BFT 150A

36ZX1T120_EN.book Page 41 Tuesday, November 28, 2017 4:48 PM

Engine Oil

• Engine oil is a major factor affecting engine performance and service life. Nondetergent and low quality oils are not recommended, because they have inadequate lubricating properties.

• Running the engine with insufficient oil can cause serious engine damage.

<Recommended oil>

Use 4-stroke high detergent, premium quality motor oil certified to meet or exceed U.S. automobile manufacturer’s requirements for API

Service category SG, SH or SJ.

Motor oils classified SG, SH or SJ will show this designation on the container.

SAE 10W-30 is recommended for general use.

PRE-OPERATION CHECKS

<Inspection and Refilling>

AMBIENT TEMPERATURE

UPPER

LEVEL

MARK

LOWER

LEVEL

MARK

OIL LEVEL DIPSTICK

1. Position the outboard motor vertically, and remove the engine cover.

2. Remove the oil level dipstick and wipe with a clean rag.

3. Reinsert the dipstick all the way in, then pull it out and read the level.

If near or below the lower level mark, remove the oil filler cap and fill to the upper level mark with the recommended oil. Tighten the oil filler cap and install the dipstick securely. Do not overtighten.

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36ZX1T120_EN.book Page 42 Tuesday, November 28, 2017 4:48 PM

PRE-OPERATION CHECKS

OIL FILLER CAP

When the engine oil is contaminated or discolored, replace with the fresh engine oil (see page 87 for replacement interval and procedure).

4. Install the engine cover and lock it securely.

Do not overfill the engine oil.

Check the engine oil after refilling.

Excessive engine oil as well as the insufficient oil could cause damage to the engine.

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36ZX1T120_EN.book Page 43 Tuesday, November 28, 2017 4:48 PM

PRE-OPERATION CHECKS

When you check the oil level with the dipstick, you might notice the engine oil appears milky or the oil level has increased. If you notice either condition, change the engine oil. See the following table for an explanation of these conditions.

Operating Method

Running the engine below

3,000 rpm for more than 30% of the time so the engine does not warm up.

Frequent starting and stopping without allowing the engine to warm up.

Result Effect

• Water condenses in the engine and mixes with the oil, resulting in a milky appearance.

• Unburned fuel mixes with the oil, increasing the volume of oil.

The engine oil deteriorates, becomes less efficient as a lubricant, and causes an engine malfunction.

Fuel

Check the fuel level and refill if necessary. Do not fill the fuel tank above the UPPER LIMIT.

Refer to the boat manufacturer’s instructions.

Use unleaded gasoline with a

Research Octane Number of 91 or higher (a Pump Octane Number of 86 or higher). Use of leaded gasoline may cause damage to the engine.

Never use an oil/gasoline mixture or dirty gasoline. Avoid getting dirt, dust or water in the fuel tank.

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