Many manufacturers are using a bright colored handle on things like the oil dipstick. On my F150, it is a bright yellow circular handle. Your V-10 Ford might be similar. Give it a look. On my F150, it is alongside the cylinder head on the side of the motor. Since the V-10 is just the V-8 with 2 more cylinders on the end, it might be in the same place.
2012 F150 FX4 Ecoboost, 2016 Surveyor 274BHS
2003 Yamaha FJR1300, Demco Premiere Slider
1969 John Deere 1020, 1940 Ford 9N, 1948 Ford 8N
Jonsered 535, Can of WD-40, Duct Tape
Red Green coffee mugs