I did read the hypermiling tips. Lots of good suggestions. I've been using many of them already, especially DWB.
I especially like to do engine modifications that save fuel. I made a list of 30 modifications that I have read about or tried. Here are the top 10: 1) heated fuel mixture 2) water injection 3) hydrogen injection 4) retarded valve timing 5) high compression 6) combustion chamber heat barrier 7) lean fuel mixture 8) zero gap piston rings 9) Singh squish band grooves 10) head plate used when boring cylinders.
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