Quote:
Originally Posted by THell
Anyone know if the 2017 ZL1 will run on 91 Octane? Live in Denver and not sure if 93 Octane is available. 91 Octane is highest I have seen. I have not done an extensive search, hoping someone can save me the time. Expecting
delivery of a white 2017 ZL1 in 2 weeks.
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You're in Denver ... you don't need as high an octane as those living at sea level. Lower air density at high altitude means that when the air charge gets compressed, it doesn't get as hot. Since its not as hot, its less likely to pre-ignite. And because thats all a higher octane fuel does (resist pre-ignition), a lower octane fuel can be used without any issue.
Besides, even if you were at (or near) sea level, 91 should still be fine. Thats all a lot of places have for premium and GM (as well as every other manufacturer) is well aware of it and build their engines accordingly.