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2020, CX-30
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Discussion Starter · #1 ·
Hi Experts,
  • any advice on what type of gas to put in my Mazda CX-30 Premium Trim (87,91,93)
  • don’t want to unnecessarily waste money by putting Premium gas (if it makes no difference in the long run)
  • also amongst the gas companies, any recommendations which one are the better one’s (I see the regular gas in some pumps say contains 10% ethanol, while others don’t say this)
  • Options available near our home: Costco, Sunoco, gulf, bp, shell, speedway
 

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2020 CX-30 GS FWD, Snowflake White
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1,393 Posts
what does it tell you in your owners manual?
 

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2020 CX-30 GS FWD, Snowflake White
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1,393 Posts
Couldn’t find any mention of which type of gas to use, hence thought of asking the experts here
don't have a copy of the US owners manual but have the Canadian one so I presume it should be very similar, and found this on page 3-28 under "Fuel and Emission" (looked up "Fuel" in the index)

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2022 CX-30 AWD, Carbon Edition (CE)
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I'm not a fan of just meeting the bare minimum engine requirements, so I opted for SHELL 89/Silver grade octane in my Corolla SE TNG 2.0L direct+port injection engine for the 2.5 years that I owned/drove it. Never had any issues with that out here in the scorching/dry southern Arizona climate, so will likely try the same approach with my CX-30 CE Skyactiv 2.5L non-turbo GDI engine. Plus, I only drive 3000-3500 miles per year these days, so the cost increase is pretty miniscule going from 87 to 89 grade. I also plan to keep this vehicle for a pretty long time (6+ years) if it proves reliable & free of major problems.
 
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