The Right Fit Choosing the right SuperiorRoads product: Python 5000+ Pothole Patcher The Python 5000+ is for towns, cities and highway departments in North America and Europe that want to preserve their roads and save money. And, it’s for contractors who want to make money. The Python 5000+ comes with a Tier 4 Cummins engine for use with Ultra-Low Sulfer Diesel Fuel. Python 5000 Pothole Patcher The Python 5000+ comes with a Tier 3 John Deere engine. It is for customers in countries where is there is little access to Ultra-Low Sulfer Diesel Fuel.