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Diesel additive ?

I guess it depends on what it is... doesn't it say on the bottle?

In any case, I believe fuel additives to only give a temporary improvement at best (while still in the tank possibly providing cetane/octane boost) and are a complete waste of time and money. But then I also swear by supermarket fuel.
 
Just use with a fu tank of fuel for maximum dilution
 
I bought once injector cleaner to put in with fuel, on instructions it said to use it 4 times with full tank.
I had half tank of fuel and my friend mechanic put everything in and said it was fine.
Just ran through that tank of fuel, no problems at all.
 
What is the additive and what does it say on the bottle?
 
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