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Why tire pressure is so important!


Tire Pressure

Tires are car components that act as primary absorbers of road surface shocks. Unpaved roads are very common in Central Asia and Mongolia, and if one drives on such roads with an excessive air pressure (greater than 30~35psi), the shocks are transferred directly to the steering wheel, causing vibrations so strong it is almost impossible to maintain one’s hold on the wheel. This is not a problem with the car suspension.

As such, the tire pressure must be maintained at levels recommended by the car manufacturer. If this happens, while non-SUV cars with low ride height have to drag themselves along a non-paved road, 4-wheel drives can be driven at full speed. And this is where you smile thinking, “This is why 4-wheel drives are good! It was right to bring one!”

For reference, when the Musso was first released in 1993, the recommended tire pressure was 30psi for the 235 series and 28psi for the 255 series. 4-wheel drives are off-road cars and as such their tire pressure has been set which this in mind. Therefore, maintaining the appropriate air pressure is essential to comfortable driving.

Normal :

Front wheel (28psi) / rear wheel (28psi)

When loaded with cargo :

Front wheel (28psi) / rear wheel (adjust suitably with 44psi range)

Air pressure measurement :

The most accurate air pressure is the air pressure measured before sunrise in the morning.


Engine Start-up

At Key On, the glow-plug indicator (so-called pigtail) at the bottom of the instrument panel will turn on then off. You can then start-up the engine.

Caution :

The warning light may not be visible as the glow plug indicator may turn on and off momentarily when the engine temperature is at 80℃.


Driving after Start-up

Start driving after completing the warm-up, during which the rpm rises until the coolant temperature reaches 30℃!

In cold temperatures lower than -30 to -40℃, even if warm-up is complete and the coolant has reached 30℃, the engine block metal body is so cold that even when driving, the water temperature gauge may start moving so late failure may be suspected. The heater air will be delayed just as much.

Therefore, in cold conditions such as those mentioned above, it is recommended to start the engine about 30~40 minutes before driving in order to sufficiently warm it up. This will allow you to start driving with immediate warm air from the heater.


4 Wheel Drive Handling Method

2H :

During normal driving Paved road, unpaved road

4H :

Freely select and release when driving at speeds of under 70km/h
Select during driving in mud, sand, desert, snow

4L :

Make sure to select neutral (N) and release with the gear lever only after the car has stopped
When maximum towing power is needed (when stuck, when assisting other cars, when instantaneous application of force is needed)


Thermal line switch

Use when the side mirrors or rear windshield covered with frost and obstructing vision


River crossing

Avoid driving in water deeper than midway up the tire!
Make sure water does not enter the engine air intakes or exhaust pipes!
(Location of engine air intake : at the rear of the right headlight.)


Vehicle Consumables Inspection and Change Period

Items of Inspection Inspection Period Period of Change Details of Inspection
Mutual Details - Park on level ground, inspect 5 minutes after turning off engine
Engine oil (locally purchased product) 2,000km when required every 3,000 km 1 Check Oil Smell: If there is a burnt smell, replace immediately

2 Check Oil Viscosity: Put some on finger and rub. Viscosity If there is no viscosity and feels gritty, replace immediately

3 Check Oil Level: Refill if needed 

※ Caution
There are a lot of low quality engine oils. Please always comply with the above inspection items! There are instances where the quality of the engine oil exported from Korea has been lowered in order to match the market prices of Central Asia or Mongolia. Do not trust simply because it is a Korean brand!
Engine oil (Castrol, made in Korea) 5,000km 1 year or every 10,000 km
Engine Oil (Liqui-moly, made in Germany) 5,000km 1 year or every 30,000 km
Engine oil filter   every 8,000 - 10,000 km Change every 8,000 - 10,000 km
Air filter 10,000 km every 30,000 km Clean by blowing air and reuse every 10,000km
Cabin filter 10,000 km every 10,000 km  
Engine Coolant Yearly inspection 3 year or every 60,000 km Auxiliary tank coolant volume inspection


Oil Specifications and Volume

Category Volume Specification
Engine oil 9.5L 5w40, 10w40, 10w50, 10w60
Coolant (antifreeze) 10.5L Ssangyong & Benz
Automatic transmission oil 9.5L Dexron 3H
Transfer case oil 1.2L Dexron 3H
Power steering oil 1.1L Dexron 3H
Axle oil Front wheel: 1.0~1.2L Rear wheel:1.9L GL5 or 80W90 viscosity oil
Brake fluid Suitable volume DOT4