MPGs After Belly Skids?

[Roofus]

Got another alignment done and it immediately corrected on the way home. Doesn’t seem like much, but you can clearly see I was dragging a tire after the first alignment (left) post tie rod install.
Very glad it wasn’t something mechanical!

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[Roofus]

Update: Highway mpg is staying around 17-18 even in sport mode, so that’s good. But city, especially heavy traffic, is like 7-14 depending on situation. I’m guessing my non-was FDU is the culprit. It’s probably taking more power to get me rolling and then when I get going consistently it’s fine. Idk lol

 

[JAD67428]

After getting my NVM skids on and giving it a fresh fill up and a week of driving I’ve seen a drop in MPG from about 17.5 down to 14.7. Wow! Seems like a big loss just adding 80lbs, but I guess aerodynamics could be having an effect?

Just curious what others are seeing after getting their belly skids on?

Could depend also on the gas station. My brother would fill up his van at gas station and get like 400 miles to the tankful. He would gas up at a different gas station (no name brand) an only get like 375 miles to the tankful.

 

[swamp2]

A general rule of thumb is adding 100lbs of weight relates to a 1% reduction in mpg. Of course, the type of driving will impact the mpg, as weight mainly will penalize on acceleration, rather than steady-state driving.

Weight pretty well exclusively penalizes during acceleration. Below 50 or so you are mostly fighting mechanical losses (tires are significant), then above 50 or so, its all about aero losses.

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