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If tjis has been asked before, then i appologize. Has anyone ever tried water/ methanol injection for power and economy increases? A buddy of mine has a new tdi he is in the process of addidng this too.
 

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It's useless for economy because they don't take into account the amount of methanol you use. It's not free. It can cool down intake temps and let you tune higher though.
 

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I got W/M in my Golf, and I have not seen an improvement in MPG, but let me tell you that methanol really has some cleaning agent and can give you more power, it keeps all the cylinders clean, it gets most of the soot out the system and also cleans inside the intake manifold, , if there is gunk in your system, i gurantee you that if meth is being sprayed in that area, it would get cleaned up,


These are the 3 main benefits that I like about my W/M system.

gives you more power.
Lower EGT's
clean inside your engine really well
 
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