89 or 93 octane in H2

[icehead]

I been reading around and some say the manual says 93 some say it says 89. I know you guys know for sure so tell me what I'm getting into. Also trying to decide between SUV and SUT as a Daily driver 38 miles each way to work and school for kids. Thanks in advance for any help. I been saving for a year for my 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.

[porschett]

I have an 06 and have been running regular in it since new and no problems.

[jaxtrip]

I have an 06' and I run 89. I found that 87 would cause a minor ping every now and then, once I switched to 89 ping never happened again.

[icehead]

Thanks Guys!!!

[Easy Ed]

Should have included in my post that I run 89 in the 2003 unless I reprogram the truck then I will run 92/93 octane.

Ed