If anyone has Mercruiser or Mercury Engines and wants to know their exact fuel burn, I can get hold of a DDT scan tool which can read these parameters so that you know how much fuel you are using. This is not applicable to Carburetor engines, but any EFI based engine. I have the software cartridge and can borrow the scan tool against a small charge, so if anyone is interested get in touch.
It's useful to have the info handy and get an idea of what you are actually burning at specific rpm's/speeds.
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