MTD 4P90HUC User Manual

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P90 Series Vertical Shaft Engines

Oil type and capacity

The recommended oil for MTD engines is an SAE 10W-30 oil with an SM API rating or better. The oil capacity for

all of the P90 series engines is 57 fl.oz (1.7 liters).

• Check the oil level daily and change the oil more frequently in severe operating conditions such as high

ambient temperature, dusty conditions, or high load use in exceptionally thick grass.

• Synthetic oil is a suitable alternative, but it does not extend service intervals.

NOTE: MTD recommends the use of petroleum oil during the break in period to ensure the piston rings cor-

rectly break in.

• Synthetic vs. Petroleum based oil: To simply look at synthetic oil and to compare it with Petroleum based

oil there is very little difference. However, when you look at the two through a microscope it is easy to see

the difference. Synthetic is made up of smaller molecules. This allows the oil to get into areas that petro-

leum based oil cannot.

• No oil additives or viscosity modifiers are recommended. The performance of a good oil meeting the API

specifications will not be improved by oil additives.

NOTE: Some oil additives may cause severe and non warrantable engine damage, constituting a lubrication

failure.

NOTE: If the oil is noticeably thin, or smells of gasoline, a carburetor repair may be needed before the engine

can be run safely.

To check the oil:

1. Twist and remove the dipstick from the engine.

2. Clean the oil off of the tip of the dipstick.

3. Re-insert the dipstick and turn it until it is fully

seated to get the oil level reading.

See Figure 1.4.

4. The oil level is determined by the highest point on

the dipstick that is completely covered with oil.

Figure 1.4

Fully seat the

dip stick before

reading it

www.mymowerparts.com

For Discount Cub Cadet Parts Call 606-678-9623 or 606-561-4983

www.mymowerparts.com

For Discount Cub Cadet Parts Call 606-678-9623 or 606-561-4983

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MTD 4P90HUC Vertical Shaft Engines