Prado engine seizures

If the engine hasn't sustained any damage then I would keep it. But having been warned about the problem I would be very careful about the servicing going forward. The fuel-injector seals are meant to be replaced every 40,000 km service and it's crucial that they are. If they're not fuel can leak into the oil and carbon deposits can develop. The problem is that the carbon can ultimately block the oil pickup in the sump, which is what can cause your engine to seize. If you do decide to keep the Prado have your mechanic check the oil pick-up to make sure there isn't anything that could lead to blockages in the future.