Ok, I'm going to throw this out there. There is no such thing as a 5k service. I started a massive thread on this. Mitsubishi recommended an oil and filter change every 10k. Sorry to say, but you have been scammed.
There is no 40k service in the Mitsubishi schedule. If anyone has told you otherwise, they are trying to rape your wallet. Below I will post the official Mitsubishi service schedule, direct from the factory,
Once a year or 10,000 km:
Change engine’s oil and filter (1)
Replace air filter if used in dusty area
Inspect coolant hoses
Inspect brake hoses
Inspect brakes – discs and pads, replace if necessary.
Rotate tires
Inspect ball joints and steering components for grease leaks
Inspect drive shafts boot for tears and grease leaks
Grease the propeller shafts joints.
Adjust the valves (diesel engines only)
Check the differential oil level
Check the transfer oil level
Check the engine driving belt – replace if needed (dry/cracked)
Inspect fuel system
3.2 diesel engine – check the upper timing guide
Every 2 years or 25,000 km (which ever comes first):
Change automatic transmission lubricate and filter (2)
Change manual transmission lubricate. (3)
Change transfer oil (4)
Change differentials oil (5)
Drain, wash and refill the cooling system (with new coolant)
Inspect spark plug cables
Replace air filter
Every 5 years or 100,000 km (whichever comes first)
Replace timing belt (If any)
Replace spark plugs
Replace spark plug cables
This is all information copied and pasted from the Mitsubishi factory service schedule. You can google it if you want. Don't fall for dealer scams telling you this needs done and that needs done. If they tell you it will invalidate your warranty, it's bullshit. This is the official Mitsubishi service schedule. If the dealer has a problem with it, tell them ok, I'll ask Japan. They will soon change their tune.