This is taken directly from the Honda service bulletin for the oil consumption problem on the K motor:
Quote:
Specific engine operating conditions may create carbon deposits on the oil control rings, which may lead
to increased oil consumption when all of the following conditions occur simultaneously on a regular and
prolonged basis:
The engine is cold (not warmed up to operating temperature)
Hard acceleration
The fuel used has an unusually high concentration of particulates
All of these conditions happening at the same time are rare, but if they do occur, deposits may
accumulate over years of driving under these conditions. If the oil control rings begin to stick because of
the deposits, the client may subsequently complain about excessive oil consumption
Basically, use Top Tier fuel only, and drive it gently until the oil is fully warmed up.
Also, letting your car idle to "warm up" is one the worst things you can do. Start, idle for 10-20s, then start driving gently.