Leading out of the gate: I am mechanically-retarded. So I just have to set the expectation low because I'm simply looking for guidance.
Last month I purchased my first Taco ('12 DCLB V6). Because I'm Type-A, I keep a mileage and MPG log and update it at every fill up. Since I purchased it I've been getting 18.1-18.4 MPG per tank.
HOWEVER, earlier this week I had to drive from RI to VA for a funeral and once arriving in VA I bottomed out the truck on a speed bump. Ever since then (on the trip back and 1 tank around town) I've been getting 16.8-17.3 MPG.
Does this sound right? What normally scrapes when you go too fast over a speed bump? I haven't gotten it on a lift yet, don't see any visible damage, and will be taking it to the dealer for another unrelated issue (bad weatherstripping) - what should I point to or suggest to look at? Or am I being too fickle?
Thanks for any and all guidance.