[PaleMelanesian]

My Civic's transmission and clutch were just fine when I retired it at 200,000 miles, 50,000 of that being super-bump-start eoc hypermiling. I only have 20k on the Fit now so I can't say one way or the other.

The Civic would go into Closed Loop mode almost immediately on a bump start. The Fit isn't so generous, taking ~5 seconds of Open Loop before it switches. I try to do longer cycles because of that - more closed loop time during a longer pulse, and then I coast longer.

A good bump start is very gentle. It shouldn't be much stress on any components. It's a 2-step process for best smoothness. Use top gear, or 4th if you're below 10 mph. Lift the clutch just until it brushes contact, then push it back down while the engine spins up. Then choose your gear and shift like you normally would.