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Has Anyone Tried Redline SI-1?

3.7K views 7 replies 5 participants last post by  XE123  
I have tried a few of the diesel enhancing products such as Millers and Archoil and found them to be pretty useless. I always use Shell/BP with the occasional tank of the best stuff, so maybe my engine was ok anyway? The products may be more effective on an old engine and/or one that has been run on basic supermarket fuel, bu my experience has been underwhelming to say the least.