89 or 93 octane in H2

[Easy Ed]

2005 owners manual
Use regular unleaded gasoline with a posted octane
of 87 or higher. If the octane is less than 87, you may get

a heavy knocking noise when you drive. If this occurs,
use a gasoline rated at 87 octane or higher as soon as
possible. Otherwise, you might damage your engine. A
little pinging noise when you accelerate or drive uphill is
considered normal. This does not indicate a problem
exists or that a higher-octane fuel is necessary. If you are
using 87 octane or higher-octane fuel and hear heavy

knocking, your engine needs service.