Recent content by jdoliver

I have a 2007 Miata MX-5. The owner's manual says to use 95 octane fuel. My previous 1999 MX-5 had no such requirement. Does this engine really need the higher grade gas? Has anyone used 87 octane routinely and found a difference? Thanks. Jim

thanks to both jmsj578 and Bruce; I really appreciate the great responses JIm

I have had a 1999 MX-5 for 7 years; just bought a nice 2007, with under 14K miles. Have a few questions for anyone that can help. 1. The manual recommends using 91 octane gas. Do you find that's needed? 2. I assume the head rest "roll bars" are decorative only. True? Can I get real roll bars...