I just did a run on I-95 down to Tampa, Florida for the playoff game this weekend (Go Skins!!). 92 Hyundai Elantra, 1.6 DOHC. 65-75 MPH all through Va (65 max speed limit) from Leesburg/Dulles area. NC, SC, GA, and Florida all have 70 MPH speed limits, so 80ish was the norm with an occasional blast to 90 to get past the odd pack of hardened arteries traveling the left lane at 55. Mine has a theoretical red line of 7000 rpm, at 80 it's doing about 4000, at 90, a tad over 5200 rpm. In Florida, fewer cops, and larger packs of cars, seemed like a much more consistent 85-88 MPH at around 5000 rpm.
I dunno what the top speed of this heap is, don't wanna know, but at 80-85 on up to 90 it seemed just fine, but you can tell the motor is busy, if smooth. Didn't burn a drop of oil in 950 miles (thanks VSOT!), ran Shell 87 gasoline the whole way, and not so much as a surge or falter the whole way even at the elevated speeds. I expect the same trip conditions the whole way back. Maybe a good time to UOA on return?
I'd say that's pretty much a sustained WOT, 1/2 to 3/4 redline for all those miles. Does it count as WOT if you're in 5th gear?