This is the only one I know of...
http://www.blackstone-labs.com/
I haven't tried it, but I think Tim (Daox) has used it to figure out best oil change intervals on his car.
This is the only one I know of...
http://www.blackstone-labs.com/
I haven't tried it, but I think Tim (Daox) has used it to figure out best oil change intervals on his car.
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View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...