How many liters of motor oil do i need to fill my innova diesel

From what I can find, it will hold from 4 to 5.5 liters. Best to start with 4 and check the oil level. Add until it is at the proper fill mark.

WHAT OIL

What vehicle
NO INFO PROVIDED to even guess at something!!

Transmission? If so it's done

you need 4 liters (1 gallon)

No. This bike has no other oil but engine oil

Hi
Is it a diesel or petrol motor? If it is Diesel or petrol then black smoke is a sign that it is using excessive fuel so it could be a blocked air filter or fuel filter. if it is a diesel motor. So check these 2 items first.
The low oil level light is on because the engine needs the oil topped up, if you fill it to the correct level this will make the oil level light switch off. Hope this helps, let me know how you get on.

5.7 liter V8 Engine code 2: Fluid capasity: Engine oil with filter 6.6 liter 5W-20,  Cooling system: Total fill 13.7 liter Automatic transmission total fill 13.3 liter Front differential 1.7 liter Rear differential 2.23 liter Transfercase 1.8 liter
4.7 liter Engine code N Fluid capasity: Engine oil with filter 5.7 liter 5W-30 Cooling system: Total fill 13.7 liter Automatic transmission total fill 13.3 liter Front differential 1.7 liter Rear differential 2.2 liter Transfer case 1.7 liter
3.7 liter Engine code K Fluid Capasity: Engine oil with filter 4.7 liter 5W-30 Cooling system: Total fill 10.0 liter Automatic transmission total fill 13.3 liter (W5A580 7.7 liter) Front differential 1.7 liter Rear differential 2.2 liter Transfer case 1.7 liter.
Hope this helps, and good luck. 

car condition good just go for 10w 30 for good density oil

Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil marked "EC", or oil with "special" additives. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell.

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the recommended mix is 40:1. So for 5 liters of fuel you're looking at 4.2 ounces of oil.