Octane ? - Honda CRZ Forum: Honda CR-Z Hybrid Car Forums

sneak1413 · 12-13-2011, 10:23 PM

Here in montana our regular gas is 85.5 midgrade 88 and premium is 90. Is it ok to still use the regular gas even though it is under the 87? I believe our manual says regular 87 octane. Anyone have any idea. I was thinking about that today for i have just been using the midgrade all year.

wicked1 · 12-14-2011, 12:50 AM

Higher altitudes can use lower octane and have the same effect.

sneak1413 · 12-14-2011, 12:53 AM

Thats what i was wondering. I thought I have heard this before but thought i would check with some folks on here. I have just been using midgrade since all my trucks ran much better with it so i just kept using it with the Z. I will have to try some and see if i see an improvement or drop in mileage.

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12-14-2011, 12:50 AM	#2 (permalink)
wicked1 Senior Member Join Date: Sep 2010 Location: Midwest US Posts: 767	Higher altitudes can use lower octane and have the same effect.