Purchased truck from dealer for $1.00. It was a trade in and due to be taken to the scrap yard. I had the dealer do a full tune-up and service (oil and transmision change) and the body and interior detailed.
Spark plugs foul out every 3,000 miles.
This has been the best automobile I have ever purchased!
This truck handles great on the highways as well as in-town.
The local Mitsubishi dealer has told me that with proper maintenance, the truck could go another 100,000 miles.
Try getting some NGK plugs or Nipendenzos or even go the the dealer.