[bestclimb]

Originally Posted by mcrews

Here is my two cents.
1. must be using a scangauge or some system BESIDES filling up to determine mpg.
2. Assuming 1, then set cruise at a fixed mph and record results from scangauge.
a.) temp, rpm, ign etc
3. Where it is flat for a couple hundred miles, record then stop, clear gauge, put magnets on, and record.
4. record in the same place on the return trip..
5. BEFORE the trip, set up a basis for your car, running on a flat area to establish a baseline.

Now, if you decide not to do this, don't try to present to us that the magnets 'worked'.

scan gauge and similar do not really show fuel metering. they know the air flow. the only thing that sees exactly what the injectors are doing is an MPGuino. If the magnets are actually doing something to the fuel, and the computer is sending less, this is the only system other than actually measuring the fuel flow via a highly calibrated tank that will show fuel flow accurately.