Engine Oil

Honda's figures: 5.1 US quarts including a new filter, 4.8 without, and 5.9 quarts total system capacity, for example after a rebuild. Honda's own term for that last figure is "Total", not dry. These are identical for the F20C and the F22C1, so every model year takes the same amount.

Honda's specification is API premium grade 10W-30 detergent oil, and the manual states that 10W-30 is "preferred for optimum fuel economy and year-round protection". Check the viscosity chart in your own manual before using an alternative grade.

The correct oil filter is Honda 15400-PCX-004, now supplied as 15400-PCX-306. The common Honda filter 15400-PLM-A02 that turns up in a lot of listings is not the S2000 part; Honda's own catalogue fitment list for it excludes the S2000. The two are not the same design either, so it is worth checking the box.

The F20C consumes oil at sustained high rpm, and some cars use close to a quart per 1,000 miles when driven hard. That is not automatically a fault, but running low at 8,000 rpm is how these engines die. Check the level far more often than you would on a modern car.

Capacities checked against all ten owner's manuals, 2000 to 2009.