Ordered Airtabs today!

[cfg83]

jeffreymccoy -

Originally Posted by jeffreymccoy

finished the leg home this evening. 392 miles. I only achieved 23.1 mpg average on the way home. this includes 25 miles of city driving, but that's not a big deal. I think the big factors in todays mileage were the rain and temp differences. still 23.1 is my 2nd best tank avg.

on the way up my IAT was reading at 100 - 110. today it was 80 - 85. it rained the whole trip.

correct me if you think I'm wrong, but I think both of these had negative impact on FE because:
1. harder to push through water than air
2. harder for tired to roll on wet suface than dry surface - higher rolling resistance
3. lower iat means more dense oxygen input. requiring proportionatly more fuel to maintian programmed air/fuel ratio

this sound right to you guys?

That sounds right to me. The IAT seems to be a big factor in the ScanGauge algorithm. Obviously in the rain, the air is a lot more humid.

When you were driving through the rain, did the raindrop pattern look different? The next time it's raining, you might want to have someone drive your truck while you watch it/film it from another car.

CarloSW2