You know.....I was just thinking that my oil consumption seemed to start right after I started using regular 87 octane. Since May of last year when I bought the car new, I had been using 93. I started using 87 mainly because of gas prices right now and also because the owner's manual says it's OK and the computer will adjust. Coincidence? Probably. I'll keep an eye on this and do a little experimenting in the next month or so until the CX-30 goes bye bye. My 2022 MX-5 Club will be built today and shipped......likely August before it gets here.