The only reason to buy the genuine OEM injector is if you are a collector restoring a vehicle to "factory original" museum standards. For everyone else—fleets, owner-operators, mobile mechanics, and weekend DIYers—the upgraded DF1551 is the smartest investment you can make in your Renault's diesel powertrain.
Stop tolerating rough idle, black smoke, and poor MPG. Upgrade to the better injector. Your engine (and your wallet) will thank you. Have you switched to a premium DF1551 injector? Share your fuel economy data in the comments below. If you need a coded set delivered to your door, check our verified supplier list. renault df1551 better
However, a heated debate is currently taking place in diesel repair shops across Europe and the UK: The only reason to buy the genuine OEM