10 mpg increase due to a part breaking in would mean that part would be completely worn out.
Imagine, installing, on purpose, con rod and main bearings or pistons (or a combination of all) that could Purposely create enough friction to decrease your fuel economy 25%.
They wouldn’t allow the engine to crank over and if they did, in a very short period of time they would be garbage.
Maybe the readout was mistakenly using kph rather than mph before the trip?
You didn’t say that you were hand calculating before the trip either.
Still, 36 is a good 10-8 better than my FX4. If your mileage does calculate over a period of time to be this impressive, don’t ever sell it or let the dealer re-flash your ECU.
Imagine, installing, on purpose, con rod and main bearings or pistons (or a combination of all) that could Purposely create enough friction to decrease your fuel economy 25%.
They wouldn’t allow the engine to crank over and if they did, in a very short period of time they would be garbage.
Maybe the readout was mistakenly using kph rather than mph before the trip?
You didn’t say that you were hand calculating before the trip either.
Still, 36 is a good 10-8 better than my FX4. If your mileage does calculate over a period of time to be this impressive, don’t ever sell it or let the dealer re-flash your ECU.
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