What I meant was the LV fluids are all around 6.0 cST at 100C - Anything "LV" as well as Dex VI and WS. It will be the same as your WS and no mileage effect. It should wear much better as a syn and not degrade as fast. WS is not good on those fronts.
Yeah, the poor infrastructure of cities is a real disappointment. But from what I know, the DC boom the last decade + was not widely anticipated, though it was behind the times even 20 years ago. No excuse either way.