You’ve now given away your general location that you seem to have been reluctant to publicize.
According to pure-gas.org, Cali only has like 17 no E gas stations in the whole state.
That sucks.
Have you tried getting AV gas? Local/small airstrips, maybe you can get the good stuff for when you need it.
Around here when gas prices were at their highest, AV gas was within about 50cents of no E premium.
I've used 100LL in the past. It's too expensive nowadays. When I used it I was an airport manager so I had access to the FastPay and I would make up a tail number to pump some in my trucks. The "tail number" was unique to each truck. I'd do a 25% 100LL to 75% 92. The trucks ran great. Back then the 100LL $1.07-$1.00/gallon, so that tells you how long it's been. Since I had to test the fuel, I'd keep a couple of mason jars to pour the test fuel in and that would run in my lawnmower. When we had to do maintenance around the airport we'd run the test fuel in the weed whacker and lawnmower for More Power!
WOW! Curiosity got the better of me...Just checked the 100LL prices, and if they are current on the website I found, the 100LL is actually cheaper than premium pump gas.
I've given out my location in various other threads, it is irrelevant now. At least to me.