2025 rocket 3 prolonged occasional starting.

Journeyman said:

Most of us run premium. Here's a long thread on the subject....

Run premium fuel?

I've always used premium (91 R+M/2 in Arizona) and been happy with the performance over the past 7k miles. Just idly flipping through the manual though and I noticed it only calls for 87 knock index fuel. When I purchased, my service manager was adamant to use premium fuel. Does anybody run...

www.r3owners.net

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